Tag - air filtration

COVID-19 has people worrying about indoor air quality, can air purifiers help?

Consumer Reports’ experts reveal what a residential air purifier can really do when it comes to cleaning the air.
Running an air purifier is a good idea to keep dust, smoke and other allergens at bay inside your home. But, if someone in your home is sick, can an air purifier help? Consumer Reports says the answer isn’t a simple yes or no.
“For an air purifier to be effective, it must be able to consistently draw in enough air to reduce the amount of particles containing the virus that persist in the air,” James Dickerson, Consumer Reports Chief Science Officer said.
The HEPA filters in most residential air purifiers are certified to capture 99.97% of particles that are 0.3 micron in diameter. But the filters also capture both smaller and larger particles even more efficiently, including the coronavirus.
If someone in your home is sick, they should be isolated in a separate room with an air purifier.
“The faster an air purifier can exchange air in a room, successfully passing it through its filter, the better its chances of capturing the virus-laden particles.

Consumer Reports says along with the use of an air purifier, people should continue to practice social distancing, wear protective face masks, and follow other guidelines provided by the CDC.
The CADR 0m³/h Model K15 air purifier from OLANSI is the best and fastest air purifier.

K15C

Purifying house only need 6 minutes!!!

  1. CE,CB,ROSH Approval
  2. Application Area 96 square meter with CADR 800m³/h
  3. Japanese Customized Motor,Quiet 22dB~66dB,Won’t Bother Your Sleep
  4. Negative Ions 10,000,000/cm³
  5. Filter Replacement Remider + Children Lock + PM1.0 Display + Touch screen  + Wifi Function +Sleep mode + UV + Remote Control

K15C Air Purifier Demonstration: https://youtu.be/D1SyujAJfTg

联系

 

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.

QQ截图20210311143653
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

图片3

QQ截图20210318172238

 

  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

图片1

图片2

 

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

Best air purifiers of 2021

Ever wonder how air purifiers work?

Experts weigh in on the efficacy of air purifiers and what to consider before buying one in 2021.

While some businesses are reopening to the public, the persistent spread of COVID-19 is challenging people to think about keeping their homes cleaner — one of the ways to do so being an air purifier. Some companies have gone so far as to claim their air purifiers can stop some airborne diseases in their tracks. But what are air purifiers, anyway? Are they different than air cleaners or filters? Can they help to combat the coronavirus? And should you consider getting one otherwise? We consulted MDs and experts about all of it. Here’s what you need to know about air purifiers and some tips for figuring out which air purifier is best for you.

QQ截图20210311143310

Air purifiers are designed to remove indoor air pollution which can be made up of small particles in the air. Indoor air pollution primarily comes from cooking, automobile emissions, dust and fires, and can irritate the lungs or trigger allergic reactions, explained Kenneth Mendez, president of the nonprofit Asthma and Allergy Foundation of America. And according to the Environmental Protection Agency, the air inside our homes can be more polluted than the air outside.

“We take about 20,000 breaths each day and spend 90 percent of our time indoors,” Mendez noted. And with all this newfound time spent at home, reducing exposure to particles that can trigger things like allergies and asthma symptoms is important. “If you live in an area with high outdoor pollution, like a metropolitan city, it’s essential to monitor the air quality in your home,” he added.

Air purifiers are often conflated with air filters, but they differ slightly, said John McKeon, MD and CEO of Allergy Standards — an organization that certifies products as “asthmas and allergy friendly,” among other things.

Air filters trap and collect dirt and debris in a filter, and are commonly found in heating and ventilation systems. They can significantly reduce the amount of pollutants, allergens and dust in your home.

Air cleaners remove more particulate from the air than the average filter, said McKeon. The device consists of a fan to draw air in and a filter to remove particulate from that air. While air cleaners often include filters, they are overall more robust in cleaning the air than air filters. Regardless, most companies will use the terms air cleaner and air purifier interchangeably.

Air purifiers use a process to “deactivate” airborne toxins like pathogens, McKeon explained. Some purifiers use ultraviolet light sterilization to kill mold and bacteria while others use an electrostatic filter to draw particles to metal plates. Most air purifiers rely on a combination to trap as many particles, gases and bacteria as possible.

 

Benefits of air purifiers

While air purifiers can’t protect you from coronavirus, there are still plenty of benefits to having one in your home. If you already experience irritation from dust or allergens, or have asthma, allergies or other respiratory conditions, it may be smart to invest in an air purifier, says Josh Davidson, MD, an allergy and immunology specialist in California.

 

“We are all trying to do what we can right now. It’s one of those factors that can only help, given everything that’s happening,” he said. “Don’t run out and buy air purifiers in mass and hoard them like toilet paper, but consider it, especially if you are at higher risk.”

Air Purifier models for your reference, please check www.olansi.net

Or contact Joanna Lin

Wechat/Mobile : +86 15016043585
Email: sales01@olansgz.com

QQ截图20210311143607 QQ截图20210311143653

 

Olansi Air Purifier for Germicidal Antivirus

Olansi Air purifier has an effective way to kill viruses.

As a manufacturer of air purifiers, Olansi is more professional in the production of air purifier filters. A variety of high quality filters are available for customization.
At present, we have a special deodorizing filter that has passed the Korean KC and CA certification, which proves our ability in the production of filters.

*Use Cu2Ag & Antibacterial antiviral compound filter

*+ Copper – silver ion antiviral PET skeleton

*+ H13 Medical grade HEPA

*+ Activatied carbon Filter

*+The sterilization rate is more than 99%

1213

We have over 25models Air Purifers with different CADR and specification with different price.

Workshop including;

Molding injection workshop
Air purifier filter workshop
Air purifier assembling workshop
Water filter workshop
Water purifier assembling workshop

Welcome to visit OlANSI in 2020.

 

Contact Joanna Lin
Wechat/Mobile : +86 15016043585
Email: sales01@olansgz.com
Skype: Olans-Joanna

Do you understand the misunderstanding of these use of air purifiers?

The economy is developing rapidly, people’s quality of life is steadily improving, and various high-tech products gradually fill people’s living space. According to the data, at present, the number of people using air purifiers in China has reached more than 30 million. As an excellent household appliance that started from health earlier, many families now choose to use air purifiers.

微信图片_20190701160133

The presence of an air purifier is also a very powerful guarantee for health. However, air purifiers are the “baby” in the large family of household appliances. Many consumers have insufficient understanding of air purifiers, and there are still some misunderstandings in the daily use process

People often ask if it is ok to turn on the purifier when the air is heavily polluted. When will the filter be replaced? Is there any requirement for the position of purifier? …

Today, we will briefly summarize some common misunderstandings of air purifiers, avoid these misunderstandings, and use the purification effect of our air purifiers to get a bigger role.

01 Does the air purifier only need to be turned on for a short time?

On smoggy days, many people think their home air purifiers can be turned on for just an hour or two. In fact, PM2.5 and other particles are only 1/20 of the size of a human hair and can enter the room through cracks in doors, Windows and walls.

Air purifier can not only remove PM2.5, formaldehyde, but also remove dust, cigarette, hair, odor, bacteria and other microorganisms, as well as formaldehyde, benzene and other harmful gases.

K09A_05

These sources of pollution that have been neglected by people are potential killers that endanger human health. Household air purifiers should not be temporary appliances that are only turned on for an hour or two. The Olansi air purifiers can be cleaned for a long time to keep the indoor air clean. Therefore, it is necessary to choose an air purifier that supports 24-hour boot.

02

Turning on the air purifier all day will seriously deplete the machine life?

The quality of the air purifiers in the market is uneven. The number of unqualified products that are used more frequently will affect the service life of the product filter. The air purifier not only gives you a considerable purification effect, but also brings you a long service life.

K09A_04
As a trusted brand of air purifiers, Olansi has the advantages of high efficiency and long service life in accordance with customer standards. Intelligent purification, turn on the purifier, and then forget about its existence.

K09A_03

 

 

Once the automatic mode is turned on, you can forget about it. The air purifier will automatically adjust the running speed according to the monitoring data in real time, and complete multiple indoor cleaning without consuming the service life of the machine. Long time to open, purification effect more clean.

03

Should the air purifier be placed against the wall?

The principle of the air purifier mainly adopts the principle that the fan is driven by electric shock to purify the polluted environment in the room, and then the clean air is brought back to the indoor environment again to achieve the effect of circulation purification. The negative ion function of the air purifier makes the concentration of negative ions near the machine higher, which will shoot down the dust. If the distance between the machine and the wall is too close, the dust will fall on the wall to form black and yellow.K09A_08

 

The air purifier adopts the whole house three-dimensional circulation purification, absorbs pollutants on a wide range of four sides, and outputs the clean air parabolically to a distant place, accelerating the whole house air flow purification technology. Too close to the wall will result in no stereoscopic formation of the net air duct of the machine. For the space to be circulated, it is recommended to place the machine 60cm or more away from the wall for better use.

 

Place the purifier according to the room and location that needs to be cleaned. During the placement process, ensure that the bottom of the machine and the junction are stable. Place the place to ensure that the air inlet and outlet of the machine are unobstructed, and there should be no objects obstructing the air inlet and outlet when in use

 

04 In order to save costs, can not replace and clean the filter for a long time?

The air purifier filter needs to be replaced regularly. If the filter is not replaced for a long time, it will easily accumulate excessive dust, which will cause the dust to be released into the air again, causing secondary pollution.

微信图片_20190701161929
The air purifiers are equipped with the function of changing the filter screen. They can be replaced or cleaned according to the filter screen. The purification effect of the product will be very good.

05 Doesn’t smell in the room mean that the air is clean?

111

After the new decoration, there will be a heavy smell in the room. The general consumer will choose the air purifier to purify the air after the interior decoration. After the indoor odor disappears, the indoor air is considered to be up to standard and the air purifier is neglected.

 

It is not known that the indoor air standard is a comprehensive measure of the content of inhalable particulate matter, harmful gases, odors and microorganisms. It is very one-sided and unreasonable to judge the air quality by odor alone. In addition to large particles and odors that are easily felt on the surface, harmful gases such as formaldehyde, benzene, and radioactive cesium are hard to smell at low concentrations, but they do not smell. These bad gases can cause damage to the body. Great damage. Moreover, the volatilization period of harmful gases such as formaldehyde is as long as 3-15 years, and it is necessary to use an air purifier for a long time to ensure the purification effect.

{PRZIR0CZ8VRO[6X6EH31BP

Olansi, recognized by many countries and regions, has been paying attention to the seasonal pollution characteristics of air and providing targeted air quality purification solutions. With the whole heart of the Olansi air purifier, the family no longer has to worry about indoor air pollution, even if they are at home for a long time, they can enjoy the warm, healthy and comfortable summer time.

B

Olansi Healthcare Co., Ltd. is a company specializing in R&D, design, manufacturing, sales and service of household environmental purification products such as household water purifiers and air purifiers. The mission of Olansi is to let more customers drink clean and hygienic water, breathe fresh and clean air, and enjoy a healthy and secure life through technology. Welcome to join the agent, undertake OEM / ODM, to provide you with excellent products and meticulous service.Olansi Logo

Contact:Patricia@olansgz.com

Notification: Business Message from Mr. Beloin body {border-width:0;margin:0} img {border:0;margin:0;padding:0}

Olansi Healthcare Co., Ltd

Guangzhou Olansi Water Treatment Equipment Co., Ltd

Address: Floor 5, C1 building, Gaosha Industry Zone, Zhongcun, Panyu District, Guangzhou, China

Website:www.olansi.net

 

6 Reasons for Why You Need Olansi Air Purifiers

With the increasing air pollution in cities, the important of air purifiers is increasing. Wearing a mask outside, going home to open the air purifier has become the standard action of most people. So, is it necessary to buy an air purifier and what difficulties can it solve for you? Let’s take a look at it.

 

Home air purifier

First, natural air pollution

The intuitive reason for using an air purifier is natural air pollution. Natural air pollution is what we usually call PM2.5. The harm of the dust itself is not serious, but the PM2.5 particles have large area, strong activity, easy to attach toxic and harmful substances, and have long residence time in the atmosphere and long transportation distance, thus greater affecting human health and atmospheric environmental quality.

 

 

Second, pollen

Pollen is also an important factor in the use of air purifiers. Many people don’t care about pollen. They think that pollen will not affect themselves. In fact, during the high pollen period, sneezing, runny nose, tears, stuffy nose, etc. are all manifestations of pollen allergy symptoms. It is not obvious and we are automatically ignored. Skin allergies in children can lead to significant changes in mood and behavior, hyperactivity, and cannot sit quietly eating, irritability, fatigue and other behaviors.

 

4.28.1

Third, dust mites

Dust mites belong to the real eye, and 34 species have been recorded. Among them, the main types related to human allergic diseases are house dust mites, dust mites and buried oysters. In addition to mites and phlegm, patients with dust mites allergies are also allergic to other substances. Because of the existence of pollution sources such as formaldehyde, second-hand smoke, dust, pollen, and dust mites, the use value of air purifiers is only available.

 

 

Fourth, secondhand smoke

The harm of second-hand smoke is not to be underestimated. In the “China’s Smoking Hazard Health Report” issued by the Ministry of Health, smokers in China over 15 years old are close to 30%; adult males are more than 50% smokers, and China’s smokers reach 301 million. Among second-hand smoke, there are more than 3,000 kinds of polluting chemicals. In addition to the lung cancer that people usually think, smoking can cause many serious diseases, so air purifier is especially important to smoke home.

 

decoration pollution-1

Five, formaldehyde

In China, in fact, users first understand the air purifier, not smog but formaldehyde. Because the decoration materials are not environmentally friendly, formaldehyde is the leader of indoor pollution, and it is also a unique pollution problem for Chinese families. Formaldehyde raw materials will be attached to the wardrobe, floor and paint, and it is a long-term volatile process. At the same time, harmful pollutants such as formaldehyde and benzene are also high pollutants. The incidence of “acute leukemia” is mostly caused by the renovation of the family. It is a long-term hazard and a serious hazard. It is the most important characteristic of gaseous pollutants such as formaldehyde.

Olansi family 1

Six, why Olansi air purifiers

Olansi Healthcare Co., Ltd (Olansi Healthcare Co., Ltd, Guangzhou Olans Water Treatment Equipments Co., Ltd, and Guangzhou Zenfly Environmental Protection Equipment Co.,Ltd these three factory all belongs to our President Mr. Peng Wei) is a professional manufacturer of car air purifier, home HEPA air purifier and office air purifier and other healthcare products. It locates in Guangzhou, Guangdong, China. Detail Scale as below:

*22,000 m2 factory size with our own R&D, mould factory, injection factory, filter factory, production, sales.

*600 square meter professional laboratory, CADR test room, 45 engineers’ R&D team, professional in ODM, OEM.

*450 employee, 5000pcs/day production capacity.

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, visit: https://www.olansi.net/

 

More information you need, please contact:

 

Hayden Xu

Email: sales04@olansgz.com

Why You Need Olansi Indoor Air Purifier?

Do we know how much air do people breathe in a day? And how many times do we breathe?

office pollution-2

 

Life is a miracle of nature, we humans even more so. However, for all of our own wonderful things, I am afraid that most people know very little. For example: How much air do people breathe in a day, how many times do they breathe?

 

An adult breathes more than 20,000 times a day and inhales about 20 kilograms of air. One person takes in air evenly and weighs about 25 kilograms a day. It is more than 10 times more than the food and water consumed a day. About 1 kilogram of oxygen is used.

air pollution

People can live for 5 weeks without eating, and can live for 5 days without drinking water, but if there is no air, they can’t live for 5 minutes. So, we can see how important the air is. People spend most of their time indoors. According to a survey by the China National Standards Institute, 68% of diseases are caused by indoor pollution! American experts have found that there are more than 500 kinds of volatile organic compounds in indoor air, including more than 20 kinds of carcinogens and more than 200 kinds of pathogenic viruses. The main hazards are: bismuth, formaldehyde, benzene, ammonia and esters. Trichloroethylene, etc. Indoor air pollution is 2-5 times more serious than outdoor, and sometimes 100 times. It is necessary to keep the indoor air healthy and fresh at all times. Moreover, during high temperature periods, indoor pollution is 20% to 30% higher than normal, and it is even more urgent to minimize harmful substances in indoor air. So how can we solve this problem to ensure the health of you and your family?

 

Now if you are still worried about indoor air pollution, choose an air purifier that will ensure a healthy breathing for you and your family. Eliminate bacteria and viruses, remove odors and harmful substances such as benzene and formaldehyde.

Olansi Air Filters

Olansi healthcare air purifier integrates functions such as deodorization, sterilization, disinfection, dust removal, smoke removal, carbon monoxide, formaldehyde and benzene, and is the top new technology for air purification.

 

 

Choose the air purifiers combine with the filters above would be keep your indoor air clean and healthy. It could prevent your family from falling sick.


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 Xu

Email: sales04@olansgz.com

wwww.olansi.net

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

Olansi Air purifiers help reduce air contamination inside

Take a deep breath—if you can. Many of the things we do to keep energy costs down, such as fixing drafty doors and leaky windows, can also seal in pesky pollutants and irritants. Many people who buy air purifiers do so in hopes of easing asthma or allergies. But despite product claims, there’s little definitive medical evidence that air purifier help to relieve respiratory symptoms.

 

Olansi Air purifiers help reduce air contamination inside the house and reduce indoor air pollution to some extent. They are shown to have positive effects on respiratory health as well circulatory health. As there is a saying, something is better than nothing, added Gyanendra Agarwal, Senior Consultant, Department of Pulmonology, Jaypee Hospital, Noida.

 

Air Purifier is an air purification equipment, which is widely used in hospital, small clinic, laboratory, office, meeting room and house etc. it can protect your life and your health through filtering dust, germ and virus in the air.

 

Olansi Air Cleaner PM2.5 is a professional household PM2.5 air purifier, so it can effectively purify the air. It has a digital backlit LCD display to accurately display PM2.5, temperature, humidity and negative ion concentration to make you your room. The air inside has an accurate understanding. Its air quality indicator (PM2.5) provides visible color changes (red, yellow, green) to indicate the level of air quality detected by particle sensor technology.

567