Tag - air purifier technology

What are the best air purifiers?

Buying one of the best air purifiers and putting it in your house, apartment or other dwelling will filter out many dangerous airborne particles. That’s especially true if you suffer from allergies, have pets who shed, live with a smoker or simply want to breathe better.

The best air purifiers even offer protection against particles carrying the COVID-19 coronavirus, Consumer Reports recently found. That may be why stores seem to be often running out of stock as the coronavirus crisis persists. If the model you like below isn’t available, it might be worth checking back in another week.

No device can completely eliminate air pollutants or be a substitute for clean outdoor air, says the Environmental Protection Agency, but the best air purifiers may indeed improve respiratory health.

That will be especially true if you suffer from pre-existing conditions such as asthma or from chronic allergies. Air purifiers with HEPA or “HEPA-like” filters will trap most airborne particles, including pet dander and pollen.

Airborne droplets expelled from the mouth or nose of someone infected with COVID-19 can also be removed from the air, although the rate at which the air is cleaned depends on the specific model.

Some air purifiers have pre-filters to trap larger pet hairs before they get to the main filter. Others use electrostatic attraction to trap very small particles or ultraviolet lights to kill bacteria and mold. And some use charcoal or carbon filters to trap petroleum-based gases.

What are the best air purifiers?
Our research examined 30-plus brands and dozens of customer and expert reviews, and we’ve come up with the top air purifiers for your home or office.

Our top pick is the K15 Model with 800CADR.

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The best-looking air purifier is the K08 Model wih humidifier.

K08A
For tight budgets, we recommend the A3C Model for standard bedroom

Olansi A3C Air Purifier
Welcome contact Joanna Lin
Wechat/Mobile : +86 15016043585
Email: sales01@olansgz.com
Skype: Olans-Joanna

Air Purifier composite Filter remove bacteria and viruses

Air Purifier composite Filter remove bacteria and viruses

☑ Remove bacteria and viruses>99%

☑ Natural filter material without exhaust emissions

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  1. Copper and silver ion anti-virus PET skeleton

The latest research and development of Cu2Ag + antibacterial and antiviral technology, using the PET skeleton as a carrier, carrying copper and silver ions, and then synergizing with the medical H13 grade HEPA filter, to play the best effect of bacteria isolation, sterilization, anti-virus, through the third release The test confirmed that it has a significant removal effect on viruses such as SARS (SARS), H7N9 (avian influenza, coronavirus), and H1N1 (respiratory influenza virus).

 

  1. H13 HEPA

The H13 medical grade HEPA filtration accuracy is less than 0.3 microns, which can capture and reduce 99.97% of fine particulate matter in the air, such as pollen, pollutants, and allergens, and reduce the carrier of bacteria and viruses in the air.

 

  1. Modified activated carbon

Modified activated carbon can filter out formaldehyde / VOCS and other gaseous pollutants to keep the air fresh

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We are leading factory specialized in OEM & ODM Air Purifier, Fruit and Vegetable Sterilizer etc health care products manufacture over 10 years with 60,000 square mater production park with over 500 workers, can produce at least 5,000 units per day.

Can customized filter for you, welcome contact us.

Quotation will be send if you interested in, looking for your revert!

Joanna Lin Wechat/Mobile : +86 15016043585

Email: sales01@olansgz.com

Using Air purifier Benefits And Healthy ways

Olansi Healthcare Co., Ltd(Guangzhou Olans Water Treatment Equipments Co. Ltd) is a professiona whole air purifier manufacturer producing negative ions air purifier,activated carbon air purifier,hepa air purifier,antibacterial air purifier and so on.

OLANSI FAMILY 1

The emergence of the new crown pneumonia epidemic in 2020 is a mixed blessing for the air purifier industry. During the epidemic, people’s needs for breathing health and air purity have increased. However, during the most severe period of the epidemic, people’s consumption of home appliances has indeed been suppressed. In addition, my country’s epidemic prevention and control methods are improving and air purification. After a short period of hot product sales, the information dropped, and the industry as a whole declined rapidly.

 

According to the total data released by AVC, the total sales of purifier market in 2020 is 6.26 billion yuan, down 30.9% year-on-year, and sales volume is 3.795 million units, down 18.5% year-on-year. The industry as a whole is showing a slight decline.

 

However, from the perspective of different channels, the offline market is mainly affected by the epidemic, and the online market is more flexible and changeable, and is deeply loved by consumers and manufacturers. The number of brands entering the online market continues to increase, and consumer demand is compared with demand. Also more vigorous. According to data ,the online market will account for 76.8% of sales in 2020, and the online market has become the most important sales channel for purifiers.

Air Purifier catalogue

The online market has become the main sales channel for air purifying products, and the consumption upgrade of air purifying products mainly occurs here. From the 2019-2020 online market price segment changes (sales) data, it can be seen that in the online market, low-end products are mainly responsible for volume, market expansion, and lower barriers to entry, while mid-to-high-end products rely on innovative functions. Promote the upgrading of the industry. Especially after the emergence of the epidemic, mid-to-high-end products have been transformed into healthy breathing, sterilization and disinfection, which has brought a lot of help to the upgrading of the industry.

 

The rise of the online market has also accelerated the diversified marketing reform of the air purification industry. With the help of online channels, manufacturers and e-commerce platforms can easily carry out new types of marketing such as live broadcast and delivery. At the same time, they can also release more consumer benefits and discounts such as full reductions and spikes. The promotion of social platforms is also very effective. A large number of Internet celebrities, celebrities, entrepreneurs, etc. personally went off the stage to introduce and explain the products of empty net, which not only has marketing effects, but also enhances brand stickiness and enhances product and brand awareness.

 

Although the epidemic has brought a new trend of technological innovation, from the perspective of user needs and scenarios, the demand for formaldehyde removal is still the most prominent demand in the 2020 user scenario, and it is far ahead. In fact, the demand for aldehyde removal is only a microcosm of the usage scenario, which is also related to the stable development of the domestic real estate market and the decoration market. Although the epidemic has brought some new fluctuations, judging from the development momentum of the domestic real estate market, the removal of aldehydes will be a long-term demand, which is also quite instructive for the future development of air purification products.

 

However, it should also be noted that the usage scenarios of air purification products have indeed changed. What kind of change. Become richer and more diversified. Nowadays, in addition to housewares, air purification products such as vehicle-mounted and desktop products are also very popular. After the outbreak of the epidemic, some manufacturers even launched mask-type portable air-cleaning products and hanging neck air-cleaning products, which also shows that people’s demand for air-cleaning products is becoming more and more extensive.

 

After the epidemic, how has the innovation of air purification changed? First of all, in response to the epidemic, consumers have more stringent standards for the sterilization and disinfection functions of air purification products, and manufacturers are also promoting the development of products from antibacterial to inactivated bacteria and viruses. Secondly, in an environment supported by 5G and the Internet of Things, users also hope that products have better intelligent performance and improve user experience; in terms of functions, multi-functional composite products that integrate fan, humidification, heating, and dehumidification functions It has also become the direction for manufacturers to try; with the rise of young consumer groups, the market’s requirements for air purification products also hope to be more miniaturized and private, and at the same time conform to the stylish and beautiful appearance design. In response to these different directions, manufacturers are continuing to work hard.

hepa filter

Olansi air purifier can make you safe environment to breath in your home.

 

Olansi is a leading manufacturer based in Guangzhou. Olansi offer their products more than 40 countries and all main markets, providing first class service and support at all times. The company has been operating since 2009 and has almost 10 years experiences in the field of air purifier and water purifier producing. To find out more, please visit: https://www.olansi.net/

https://youtu.be/ddowVMMQLcU

More inquiry needs please contact:

Contact Person:Tina Wang

Email:sales03@olansgz.com

 

Olansi Fruit and Vegetable Sterilizer

Olansi OEM/ODM Air Purifier, Vegetable and Fruits Disinfector, Hydrogen Water maker products with 450 workers & 50 engineers.

*Certification: BSCI, CE, ROSH, CB, UL, FCC

We would like to Introduce our Fruit and Vegetable Sterilizer Model C1 to you.

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Theory,
Juts need add water, use WATER CATALYST STERILIZATION PRINCIPLE to remove pesticide residue, plasticizer, baterial).
3 grade you can choose 15mins/18minus/30minus

Function& Advantage,
Washing Fruits, vegetable, cereal, fish, talbeware,feeding-bottle, hands and so on.

Non-toxic and pollution-free, stable operation

How pesticide residue and plasticizer, baterial do harm to boby?
1. It affects a child’s brain and body development, decrease in immunity.
2. Causes infertility, or abortion, stillbirth, or affects prenatal fetal development, gave birth to aberrant children
3. Chronic diseases, headaches, fatigue, premature aging, arteriosclerosis, cardiovascular and cerebrovascular diseases, and more serious cases lead to cancer.

微信截图_20210304103856

Specification,
Input AC100-240V, 50HZ; Output DC24V/4A;
Power: 65W;
Material: Food grade PC;
Capacity: 12L;

PPT Introduction & Quotation will be send if you interested in, welcome sample order, thanks !

 
Contact Joanna Lin
Wechat/Mobile : +86 15016043585
Email: sales01@olansgz.com
Skype: Olans-Joanna
Olansi Healthcare Co., Ltd
Guangzhou Olansi Water Treatment Equipement Co., Ltd
Website: www.olansi.net

Address: No.1 Haiyi street, Lanhe Town, Nansha District, Guangzhou City, Guangdong Province

Air Purifier Operating Principle

Founded in Guangzhou in 2009, Olansi Healthcare Co Ltd is a professional manufacturer on air purifiers, disinfectant liquid generators, water purifiers, beauty products, hydrogen water generators etc. Healthcare products. Olansi covers more than 60000 square meters, owns more than 350 staffs, with turnover US$ 100 million in 2020. Olansi has been serving worldwide famous brand like Haier, TATA group etc. for a long time and have good partnership with worldwide customers.

Olansi air purifier workshop

Air purifier workshop Nansha 5

 

Today, we want to introduce air purifier operating principle.

Air purifiers, also known as air cleaners, air fresheners, and purifiers, refer to the devices that can absorb, decompose or transform various air pollutants (generally including PM2.5, dust, pollen, peculiar smell, formaldehyde, etc.) , Bacteria, allergens, etc.).

 

The air purifier is mainly composed of a motor, a fan, an air filter and other systems. Its working principle is: the motor and fan in the machine circulate the indoor air, and the polluted air passes through the air filter in the machine to remove various pollutants or adsorption. The air purifier will also be equipped with a negative ion generator at the air outlet (the high voltage in the negative ion generator generates DC negative high voltage during operation), which continuously ionizes the air to produce a large number of negative ions, which are sent out by the micro fan to form a negative ion air flow to achieve clean or purify the air.

 

Purification principle of passive adsorption filter type (filter purification type)

The main principle of the passive air purifier is: the air is drawn into the machine with a fan, and the air is filtered through the built-in filter, which can filter dust, odor, toxic gas and kill some bacteria. The filter is mainly divided into: particulate filter and organic filter.

 

Active purification principle (no filter type)

The fundamental difference between the principle of active air purifier and the principle of passive air purification is that active air purifiers get rid of the restrictions of fans and filters, instead of passively waiting for indoor air to be drawn into the purifier for filtering and purification. Instead, it effectively and actively releases purification and sterilization factors into the air, and the air diffuses to all corners of the room to purify the air.

 

Double purification (active purification + passive purification)

This kind of purifier actually combines passive purification with active purification.

 

Welcome to contact Olansi for desktop air purifier, floor standing air purifier, movable air purifier, HEPA air purifier, mini air purifier, car air purifier inquiry.

Olansi Family

OLANSI FAMILY 1

 

Contact

Sammi Liang(Mrs)

Moblie/What’s app/Wechat:+86 15089224562

SKYPE:sammi_olans

Email:olans03@olansgz.com

Olansi Healthcare Co., Ltd

Website:www.olansi.net

Olansi best home use air purifier

Olansi is a leading manufacturer based in Guangzhou. Olansi offer their products more than 40 countries and all main markets, providing first class service and support at all times. The company has been operating since 2009 and has almost 10 years experiences in the field of air purifier and water purifier producing.

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For Home Appliances,Indoor air purifier refers to adsorption, break down, or convert all kinds of air pollutants (including dust, pollen, peculiar smell, formaldehyde, decoration pollution, such as bacteria, allergens, etc.), effectively increase the air cleanliness of the product, is to improve indoor air quality, create a healthy and comfortable office and residential environment is very effective.In fact, although the name, type and function of air purifiers announced in the market are not the same, but from the perspective of the working principle of air purifiers, there are mainly two types: passive adsorption filtration type and active filtration type.

 

In our life ,oxygen and negative ions are a pair of good brothers in the air. They are two elements that are indispensable to human life. Oxygen is the first need of life movement, accounting for 61% of life. Among other main components, hydrogen accounts for 12%, carbon accounts for 20%, and nitrogen accounts for 3%.

 

Using Air purifier tips:

 

  1. Start the air purifier to clean the air according to the environmental pollution. For example, an air purifier that purifies PM2.5 pollution is preferably used in the case of serious air pollution or indoor environmental pollution, which can ensure a good purification effect. If the atmospheric air quality is good, there is no need to turn on the air purifier for a long time. Summer and winter can be combined with a humidifier for best results.

 

  1. It is necessary to clean and maintain the purifier in time, and install an electrostatic adsorption purifier for cleaning the signal light. When the signal light is on, it indicates that the dust collection is full, and the dust collecting plate should be cleaned.

 

3, the purifier of high-efficiency filtering function can often check the filter replacement indicator. If there is no indicator light, you can open the machine to check the pollution of the filter element. If the filter element turns black, you should replace the filter element immediately.

 

Keep healthy,breath fresh air. To find out more, please visit: https://www.olansi.net/

https://youtu.be/ddowVMMQLcU

More inquiry needs please contact:

Contact Person:Tina Wang

Email:sales03@olansgz.com

OLANSI Tell You How to be an Air Purifier Expert

Air Pollution

With the worsening of the environment, air purifiers have gradually entered the home, and become the essential products after refrigerators, televisions and air conditioners. Unlike other home appliance industry, as a new industry, the air purification industry is relatively chaotic due to the lack of a comprehensive system of industry norms. There are varieties of chaos: shoddy, exaggerated functions, price gouging. All sorts of chaos falls, rights and interests suffers the most serious should belong to consumer.

 

In order to protect the legitimate rights and interests of consumers and further regulate the market, the first mandatory standards for air purification industry came into effect in 2016. In order to facilitate memorization, some people specially extract its essence, namely the so-called “three high and one low”. Olansi healthcare will explain you what are they.

Olansi Products 2

Olansi Products 2

As the first mandatory standard in the purification industry, it puts forward four core performance indicators: CADR (clean air output), CCM (cumulative purification amount), purification efficiency and noise. The so-called three high and one low are high CADR, high CCM, high purification efficiency and low noise.

 

CADR (clean air volume), expressed in cubic meters of air that can be purified per unit of time, directly reflects the actual performance of the purifier. The higher CADR air purifier has, the stronger the purification capacity. However, higher CADR value does not mean better. The selection of CADR value should be reasonable according to the indoor living area, so as to avoid the unsatisfactory purification effect caused by small machine big room or the power waste caused by bigger machine small room. Big CADR machine used in small room besides cause the excessive consumption of electric quantity, the purifier that can send out ion still can release ion too much and affect family health.

Olansi Air Filters

How to choose a suitable CADR according to the size of the room? Here is a decision: (0.07~0.12)*CADR= usable area.

Special attention should be paid to the fact that CADR of particulate matter is different from that of harmful gases, and CADR of particulate matter is higher than that of harmful gases.

 

CCM (cumulative amount of purification) is a parameter reflecting the service life of filter screen of the purifier. The larger the value is, the longer the service life of filter screen is, and the lower the replacement frequency is. It is a cost performance index of the product. If CADR is a measure of how fast you can go, CCM is a measure of how far you can go, so CCM is an important indicator that can’t be ignored.

 

Purification efficiency, the amount of clean air per unit power consumption of an air purifier (CADR to rated power), is a measure of power consumption. In general, a higher value indicates that the purifier has both energy saving and purification effect. Need special attention here is that the particles of purification efficiency level division and the purification efficiency of formaldehyde level division standard is different, so cannot treat as the same, the specific energy efficiency level is defined as: particulate matter numerical grade 2 for qualified, the purification efficiency of 5 for the high level, and the purification efficiency such as formaldehyde, 0.5 for qualified level 1 is the efficient level.

 

Noise, the indicator that affects the purifier product experience, noise is definitely the lower the better. How to determine the performance index of the purifier mainly depends on the value in two states, one is in the working mode and the other is in the sleep mode. Among them, the noise in working mode with less than 50 decibels is better, sleep mode with less than 30 decibels of the product is better.

Olansi Family

Olansi Family

It would be better to choose a product based on a more thorough understanding of the criteria.

https://youtu.be/ddowVMMQLcU
Olansi is a Chinese based company with an aim to make the world a healthy planet. And for this very reason it has introduced its range of air purifiers for both domestic and commercial purposes. These purifiers have multiple stages of purification systems that don’t allow dust particles to harm you and your family.

 

For more inquiry, please contact

Hayden

Email: sales04@olansgz.com

www.olansi.net

Is it necessory to use car air purifier ?Olansi air purifier manufacturer tells the performance of car air purifier

After the industrial revolution, there have been many regions in the world vigorously developing the heavy industry, which caused the rapid decline of air quality and posed a serious threat to human health.In order to improve the air quality to a certain extent, the corresponding long-term air governance policies were issued. Some scientific research institutions were also vigorously studying the air purification technology, so as to bring people a healthy breathing experience as soon as possible. The application of the new technology was not applied in the automotive field at the beginning. After further development, people begin to realize there is pollution of air inside the car, so the air purifier applications have achieved in the field of automobile development.Guangzhou Olansi car air purifier manufacturer specializes in car air purification technology research and application, our many years of research on air purifier technology has promoted the further development of air purifier.

Function and working principle of Olansi Car air purifier

K05

  • Main Function of Olansi Car Air Purifier

There are many types of car air purifiers, among which are the filter type car air purifier, the electrostatic dust collector car air purifier, the net ion group car air purifier, the ozone car air purifier.The car air purifier developed by the Olansi is composed of a fan, a motor and an air filter, and an intelligent monitoring system. The main function of the car air purifier is purify every part of the car. To remove dust and smoke and odor, The car air purifier also has the function of dust reduction and detoxification, which can remove the odor and microorganisms in the car, which is more helpful in preventing influenza.

K05B_02

The  car air purifier is composed of  electric negative ion generator, air filter, and a micro fan.In the specific working process, the fan in the machine can promote the circulating air in the car. The polluted air passes through the pm2.5 filter and the activated carbon filter in the machine, and then adsorbs and filters various pollutants. The negative ion generator installed in the air outlet continuously ionizes the air, generates a large amount of negative ions and is sent out by the micro fan, so that a negative ion airflow can be formed, thereby purifying the air. Among the system structures of the Olansi car air purifier, the core part is the air purifier filter, which has a great influence on the air purification effect in terms of quantity and material.

Features :

1)Olansi K05 Car Air Purifier silently removes dust particles such as pollen, dust, mold, pet dander and second-hand smoke from each car. It is can purifier the unpleasant and stimulating smell of the air inside the car.

2)Built-in HEPA filtration technology captures 0.3 micron particles of air pollutants, allowing you and your family to breathe naturally healthy air in the car.

K05B_07

3)Olansi Car air purifier has an electrostatic function of negative ions, which can generate load on the air and absorb and purify the dust with a positive load.With the help of HEPA technology and negative ion function, it can remove microbes, car odor and other pollutants better than the general car air purifier, keeping the air fresh.

4)Olansi K05 car Air Purifier is with high-purification and low-noise technology that gently releases fresh, clean air. With a DC power plug, you can use the USB output charging enabler.

K05A_05

Olansi Healthcare Co., Ltd. is a premier high-tech healthy and environmental friendly factory for purifier. Over 10 years’ experience, with an integrated research and development program. Our activities includes research, development, injection, assembling, sales and after sales. We are a pure source of quality solution of air purifier, water purifiers, hydrogen water maker and other heath care products. Now Olansi is one of China’s top 5 largest OEM purification products factories.

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For more air purifier details please kindly contact: 

Sales05@olansgz.com /Patricia@olansgz.com 

Olansi Healthcare Co., Ltd

Guangzhou Olansi Water Treatment Equipement Co., Ltd

Address: Floor 5, C5 building, Gaosha Industry Zone, Zhongcun, Panyu District, Guangzhou, China

Website:www.olansi.net

How to avoid the damage of decoration formaldehyde pollution?

Formaldehyde, a colorless gas, has a special irritating odor and is easily soluble in water. It has irritating effects on people’s eyes and nose. It also poses a cancer risk to the human body in excess of a certain concentration. This is a problem that cannot be solved for every decoration family. Formaldehyde also has a variety of hazards. Exposure to different concentrations, different times, and hazards are also important:

Lesser hazards: Allergies, such as sneezing, runny nose, tears, throat discomfort or pain, asthma, redness of the skin, etc.

Heavier hazards: Carcinogenic, nasopharyngeal, colon, and brain tumors. It can also cause fetal malformation or even stop development.

 

First of all, we should know where the decoration formaldehyde pollution comes from. There are several materials would release formaldehyde, such as Glass cement, wooden floor, Wood furniture or cabinets, Floor adhesive, Latex paints and other coatings, Wallpaper and Textile.

Indoor air pollution

As we know there are so many materials would release the formaldehyde, so how can we avoid the damage of formaldehyde pollution?

decoration pollution-1

Apart from maintaining good living habits and adopting some daily air clean assistive measures (including air purifiers), the most important thing is to do preventive work during the renovation and renovation, and control the toxic chemical pollutants within the scope of conformity to ensure the indoor air quality passes.

1, Make environmental protection pre-evaluation before decoration

Decoration pollution is caused by non-environmental materials, but even with environmentally friendly products, decoration may not be able to sit back and relax. Even if individual inspections of building materials are in line with national environmental standards, the use of too much, the quantity has become a qualitative change; it may also exceed indoor air pollutants. If designing, according to the area of the housing to consider the best use of the material, projected environmental protection index, you can effectively prevent the use of materials due to unreasonable decoration pollution caused.

decoration pollution

2, choose the formal environmental protection material

When purchasing furniture, paints, plates, and glues, pay attention to their environmental protection and try to select environmentally-friendly materials. If you need to use a large number of plates in interior decoration, you should try to choose the E1 and E0 environmental protection plates produced by the regular manufacturers; the best coating depends on whether there is an authoritative test report issued by the country, and the formaldehyde purification rate and purification durability are two indicators have to consider.

 

3, Using different materials

When selecting a decoration design, a single material cannot be used excessively. It is best to use materials such as wood, stone, glass, and iron. Because different materials contain different contaminants, if a single material is used too much, even if the product is qualified, the total amount adds up. The total amount of such contaminants contained in the material is relatively easy to exceed the standard.

Therefore, try not to place large-size or large-area furniture in a small space, and not to choose the same furniture as the floor material, especially for families that have paved composite floors and other artificial floors.

 

4, Live in when air reaches standard and keep ventilation

General new house decoration pollutant content will be relatively high when just finished, ventilation for some time, it is best to go through the air testing of professional agencies, do photocatalyst in addition to formaldehyde treatment, indoor air quality standards can only stay. For a simple renovation or renovation, we must pay attention to more windows and air convection. Clothes stored in newly-renovated furniture should always be taken out for drying, so as to prevent households from having toxic substances that are volatilized and adsorbed on clothes, causing damage to the body.

 

5, Using an air purifier

Air purifier can absorb, purify or convert various air pollutants (generally including PM2.5, dust, pollen, odor, decoration pollution such as formaldehyde, bacteria, allergens, etc.), and effectively improve air cleanliness.

https://youtu.be/ddowVMMQLcU

Olansi is a leading manufacturer based in Guangzhou. Olansi offer their products more than 40 countries and all main markets, providing first class service and support at all times. The company has been operating since 2009 and has almost 10 years experiences in the field of air purifier and water purifier producing. To find out more, please visit: https://www.olansi.net/

 

More inquiry needs please contact:

 

Hayden Xu

Whatsapp/Wechat:+86 135 80533653

Email:sales04@olansgz.com

Trying to keep the dirty air away from their children and older parents.

NEW DELHI — For days, many in Delhi have been living as if under siege, trying to keep the dirty air away from their children and older parents.

 

But it is not easy: Open a window or a door, and the haze enters the room within seconds. Outside, the sky is white, the sun a white circle so pale that you can barely make it out. The smog is acrid, eye-stinging and throat-burning, and so thick that it is being blamed for a 70-vehicle pileup north of the city.

If in past years Delhi’s roughly 20 million residents shrugged off wintertime pollution as fog, over the past week they viewed it as a crisis. Schools have been ordered closed for three days — an unprecedented measure, but not a reassuring one because experts say the concentration of pollutants inside Indian homes is typically not much lower than outside.

A family rode a scooter during heavy smog and dust in Delhi on Sunday.

Levels of the most dangerous particles, called PM 2.5, reached 700 micrograms per cubic meter on Monday, and over the weekend they soared in some places to 1,000, or more than 16 times the limit India’s government considers safe. The damage from sustained exposure to such high concentrations of PM 2.5 is equivalent to smoking more than two packs of cigarettes a day, experts say.

 

“There is so much smog outside that today, inside my house, I felt as though someone had just burned a few sheets of paper,” said Amaan Ahuja, one of dozens who shared their families’ experiences in response to a request from The New York Times.

“You can literally see smoke in the air, and when you breathe, you can smell it, too,” he said. “We are trying to keep the kids indoors with all the windows closed.”

Another reader, Tulika Seth, described her family’s life over the past week as “unnatural and disturbing.”

Asked where she lived, she responded, “a gas chamber.”

To understand the health consequences of the dense smog that settled over India’s capital over the past week, scientists are looking back decades in search of a historical precedent:to the 1952 Great Smog of London, which is believed to have caused as many as 12,000 premature deaths.

In that case, a layer of dense pollution — caused largely by emissions from burning coal — dissipated after four days, when the weather changed. But an uptick in deaths continued for weeks afterward, so shocking the public that it spurred a wave of environmental regulations.

Delhi’s chief minister on Sunday announced a series of emergency measures, including a five-day moratorium on construction, a 10-day closure of a power plant and a three-day closure of about 1,800 public schools.

On Monday, the city government released a list of health guidelines, advising citizens to wash their eyes with running water and to go to a hospital if they were experiencing symptoms like “breathlessness, giddiness, chest pain and chest constriction.”

But experts said mitigating the conditions would have required policies to be put in place months ago.

“These are all decent emergency measures, but they’re not solving the long-term problem,” said Bhargav Krishna, who manages the Public Health Foundation of India’s environmental health center.

“The best we can hope for, in a way, is to plan for next year,” he added. “This year is almost a washout.”

Changing weather conditions are likely to disperse the dense cloud of pollutants over the next few days. But they will also bring the beginning of the widespread burning of trash, including plastic and rubber, for warmth by Delhi’s poor.

Among the persistent problems for policy makers is that the sources of the pollution — vehicles, construction, crop burning and holiday fireworks —

fall under the authority of half a dozen city, state and federal government bodies, which are in some cases at odds with one another politically, Mr. Krishna said.

“Where exactly is the responsibility for implementing these plans?” he said. “At whose desk does this all lie?”

He added, “The diffuse nature of power means that it is easy to pass on responsibility to others.”

Public anger over Delhi’s air is more palpable than in previous years, and people are more likely to identify pollution as the cause of their health problems.

Anumita Roychowdhury, who runs the air pollution program at the Center for Science and Environment, said that sense of urgency would have to be sustained if the city were to impose lifestyle changes, including restraints on car travel.

This has to translate to very strong support for very hard decisions,” she said. “All soft options are over.”

First, though, people here must get through the next few days.

Sherebanu Frosh, who lives in Gurgaon, south of Delhi, said she and her children were “cowering by our air purifiers,” which had become overloaded with the concentration of particles in the air.

“So we’re putting both our purifiers in one room and spending the day there,” she said. “If we leave, we wear masks.”

Jessica Farmer, whose children attend the American Embassy School in Delhi, said she had moved five purifiers into three rooms of her house, but the concentration of PM 2.5 in some places remained at 300, five times the W.H.O. recommended limit.

“It is as though we are under siege,” Ms. Farmer said. “We can’t go outside, to malls or movies where the air is not purified.

“How can one live like this?”

As for this situation,suggestion some olansi air purifier for you.02

03

You deserve it .