Tag - Hepa Air Purifier

smart design electronic HEPA filter home air purifier RFQ from Netherlands

smart design electronic HEPA filter home air purifier RFQ from Netherlands.

Now the air purifier is more hotsale in the world,special in the europe.We have received more and more air purifier RFQ from europe customers.

Below is the RFQ of smart design electronic HEPA filter home air purifier.

The RFQ details is below:

Dear Sir/Madam:

We are looking for smart design electronic HEPA filter home air purifier.

The product technical details as below:

Power Source:Electrical
Type:HEPA Filter
Installation:Portable Air Purifier
Certification:CE,GS,RoHS,CB,EMC
Capacity (CFM):300
Power (W):1
Voltage (V):220
frequency:50Hz
color:black, white and so on
Coverage area:40m2
Noise Level(Low Speed):43dB (A)
CADR:150
oem:welcome
logo:as per your request
Product Size:29*8*42cm


This is a professional customer looking for air purifiers.

So we treat it seriously and give a soon reply as below:

Dear Vimal Babu,
Olansi is a professional manufacturer of Wholesale Air Purifier,Water Purifier,Hydrogen Water Maker etc healthcare products, more than 11 year experience with CE, CB, ROSH,FDA
· * 60,000 m2 own injection mold factory,own filter factory,own mold factory,own assembling factory!
· * 600 square meter professional laboratory,15 engineers’ R&D team, professional in ODM,OEM,
· * 3,000 pcs per day of production capacity!

Air purifier

Air purifier

I am very looking forward to your reply.
Best Regards,
Elena han
Quality is the soul of our Company
Guangzhou Olans Water Treatment Equipments Co. Ltd
Website:https://www.olansi.net/product-tag/wholesale-air-purifier/
Email: sales02@olansgz.com
Skype: Olans-elena han/ Whatsapp& Wechat& Mobile : +86 18344396883

 

How to determine the air purifier which brand is good

How to determine the air purifier which brand is good

In recent years, along with the air purifier market is hot, the air purifier ten ranking “has gradually became one of the purchase index of consumer concern. So many people wondering,” the air purifier ten ranking “useful to buy air purifier?

Just contact air purifier products in the eyes of consumers, no matter what brand of air purifiers are not what difference, Cadr, CCM, purification efficiency and noise is the main reason for the novice buy air purifier products the main index – this is the National Standardization Technical Committee appliances in March 2016 officially issued the new national standard gb/t 18801-2015< air purifier >.

Indeed, gb/t 18801-2015< air purifier GB > new air purifier products through the development of the core technology index, the air purifier can help consumers to avoid fraudulent propaganda into bad business. However, the air purifier consumption can not only on paper technical indicators, including product quality, expand the function, stability, sales, logistics and customer service the service and so on, and these national standards is not involved, it is the fundamental difference between different brands of air purifiers.

So, consumers how to determine the differences between the various brands, to find a satisfactory air purifier brand?

For ordinary consumers, the most intuitive understanding of the brand is the amount of advertisement as well as relatives and friends recommend experience. However, the air purifier industry has entered a stage of rapid development, this way not only can not understand the real situation of the air purifier market pattern, also it is easy to be deceived by false propaganda. What is more, some enterprises also by name and logo imitation has a high fame and good reputation of the brand, fish in troubled water fool consumers. Such as the famous top ten brands of air purifiers are often counterfeit Olansi.

SO,Choose value air purifier brand is very important.

Olansi(http://www.olansi.net) China Factory you can believe it.

06(1)

Air purifier china’s important

Air purifier china’s important

olans-air-purifier-ols-k06b-5

The longest distance in the world is not that between life and death, but when I hold your hand at a crossing in Beijing, I can’t see your face.” Olansi people said like this.

As with many of the country’s more solemn situations, the choking smog blanketing Beijing since Monday has evoked such wisecracks from social media users making light of the dire air situation.

In the past few days, jokes on the topic have become one of the most discussed threads on China’s largest microblogging site Sina Weibo.

But despite the light-hearted approach to the pernicious atmosphere, the capital’s residents are feeling the impact of what is the most severe bout of smog in Beijing since July.

The National Meteorological Center (NMC) upgraded Tuesday’s yellow alert to orange, the second highest, on Thursday afternoon. It suggested people stay indoors and wear masks if going out.

Dou Chen returned from the UK to China this February. Since coming home, she has suffered from a nettle rash for five months. A blood test found that she is allergic to substances in the air.

“When I travel outside Beijing, my symptoms are relieved,” she said. But in the past two days, the rash worsened.

In the Guang’anmen Hospital, a doctor told her the symptom were affected by the smog.

An unnamed staff member with the Beijing Children’s Hospital told Xinhua although they haven’t seen an obvious rise of patient numbers yet because the smog just started, they were told to prepare for a peak in respiratory problems.

Wang Xia, 34, is a teacher with the No. 25 Middle School. “Whenever persistent smog occurs, more students ask for sick leave,” she said. “In a class with about 40, once more than 10 students left in the afternoon.”

The environment watchdog in Beijing blamed farmers’ burning fields of straw for causing the smog, an allegation doubted by Beijingers.

But Li Lixin, an air pollution treatment official with the Beijing Environmental Protection Bureau, said a satellite test conducted during the summer of 2013 showed a discharge from widespread straw fires could drive up the PM 2.5 reading in Beijing from 110 to 460 micrograms per cubic meter in a few hours.

Still, web users question the charge.

“Agriculture has been a vital industry in China for hundreds, if not thousands, of years, and it is the tradition in rural areas to burn straw after autumn harvest and plough to bury the ashes in the ground as fertilizer,” said a Weibo user nicknamed Sunflower. “But why we didn’t have smog in the past?”

At such criticism, Wang Yu, head of the energy ecology department of the Beijing Agricultural Bureau, admits pollutants were mainly from motor vehicle exhausts, coal burning, industrial production and dust, rather than burning straw.

“But this is the season for burning straw, coinciding with a special climate which features high humidity and lack of wind,” he said. “It was like the straw that breaks the camel’s back, worsening the air pollution.”

Beijing and its surrounding provinces have banned straw burning. And anti-smog measures didn’t stop there.

In addition to the straw ban, the city pledged to replace coal with cleaner burning energy like electricity and natural gas for domestic use. They also hope to curb coal sales and use by the end of 2020, as well as other high-pollution fuels, such as fuel oil, petroleum coke, combustible waste and some biomass fuel.

Beijing has also raised the discharging fees for major pollutants such as sulphur dioxide and nitrogen oxide this year.

Li Lixin noted that it might take time to see the achievements of such measures, but the government has attached great importance to the issue, and people’s awareness of environmental protection has improved.

In the meantime, Beijingers are avoiding the outdoors and doling out thousands to protect themselves indoors.

An old man surnamed Cheng said his friends with asthma and bronchitis would remind each other not to go out in smoggy days.

Wang Xia’s school has stopped outdoor activities for students. “What if we could have air cleaners installed in each classroom,” she said.

According to a Mr. Zhang, a sales representative of electrical appliance brand SHARP on e-commerce platform JD.com, sales of air purifiers almost doubled in the past two days.

Fu Baoling, a retired worker, just bought a air purifier for 2,100 yuan (about 342.6 U.S. dollars). “My granddaughter is young, so I bought air purifier especially for her,” she said. “I don’t know whether this is effective or not. I just hope the sky could clear up soon.”

Air Purifiers Finally Coming to Beijing Classrooms

Air Purifiers Finally Coming to Beijing Classrooms

 

Beijing has taken a giant step forward torwards equipping public schools with air purification machines, thereby providing students a breath of fresh air during one of the city’s many smog attacks for the first time ever.

The Beijing Municipal Education Commission announced that city finances will be used to pay for the purchase and installation of air purifiers in local elementary and middle schools.

Years of bureaucratic red tape had left students with no policy on how best to protect them during the numerous bouts of severe air pollution that have beset the city.

Last December after having conducted a year-long study, the Beijing Municipal Education Commission said it wasn’t convinced air purifiers should be allowed in its schools. The commission said air purifiers couldn’t guarantee the safety of Beijing students because their use would mean “classrooms would need to be sealed, leading to no air circulation and thus the easy transmission of germs.”

As a result, air purifiers had been effectively banned from most Beijing classrooms.

Hu Qingming, a Dongcheng District resident who had contributed towards the purchase of an $770 air purifying machine for his daughter’s classroom, said the air filter was rejected by the school last year.

“We had no choice but to give up the idea. Finally, we sold the purifier,” said Hu.

A Hangzhou parent of a 5th grader had a similar story that ended with a far-reaching implication. “We went to the appliance store with the intention of buying an air purifier for the classroom. We contacted the class leader, after which the teacher contacted the school principal. But after all that, the teacher said there was no precedent for it,” said the parent.

The announcement doesn’t provide specifics on how much money will be allocated to each school, or as to what kind of air purification machines will be purchased.

Even though the cost of equipping city classrooms with air purification systems won’t come cheap, some Beijing schools have already footed the bill.

Beijing private schools that have splurged on air purification systems include the Lycee International Francais Charles de Gaulle de Pekin, the Harrow International School Beijing, the Canadian International School of Beijing, and the International Montessorie School of Beijing.

Two private schools, Dulwich College Beijing and the International School of Beijing, have even installed specialized domes with pressurized, built-in filtration systems where students can safely engage in physical activities.

The decision to make air purification machines mandatory in Beijing classrooms comes a year after the commission decided to make air purification systems a standard feature in newly-built schools.

“Schools must guarantee students’ safety and get permission from their parents before installing,” head of the olansi people said at the time.

But even with the commission’s decision to allow air purifiers in Beijing classrooms, there is currently no official standard of what defines clean air in Chinese schools.

Despite being thoroughly educated on the risks of breathing unfiltered air during severe smog attacks, breathing clean air still isn’t a priority for some Beiing residents. Air filtration machines are often stigmatized as “luxury goods” by some people, while others can be seen outside without air filter masks during one of the city’s multiple red alerts.

Current emergency protocols for air pollution mean thatclasses are cancelled during a red alert, while outdoor school activities are cancelled during an orange alert.

 

China air purifier manufacturer directory 2

China air purifier manufacturer directory 2

1. Guangzhou Chuanghuan Ozone Electric Appliance Co., Ltd.

Room 210A, No. 18 Yard, Mubei West Street, Tianhe District, Guangzhou, Guangdong, China (Mainland)

2. Ningbo A-One Hardware Co., Limitd.

No. 57-4, Zhongnichang, Xinmian Village, Xiaogang Street, Beilun District, Ningbo, Zhejiang, China (Mainland)

3. Shanghai Booguan Technology Co., Ltd.

No. 378, Zhongcun Road, Nigang Village, Anting Town, Jiading Area

4.Dongguan Ramcent Electrical Appliance Co.LTD.

No. 1-2, Cunmei, Liuwu, Shijie Town, Dongguan, Guangdong, China (Mainlan)

Tel:864000522533

5.Aquapure (Shenzhen) Ozone Technology Co., Ltd.

Room 1102, University-Town Business Park, Lishan Road, Taoyuan St., Nanshan, Shenzhen, Guangdong, China (Mainland)

Tel:8613715076653

6.Shenzhen Blueocean Industry Co., Ltd.

Room 3H061, No.5 Exchange Square, Southern China city, Pinghu, Longgang District

7. Shenzhen Dituo Electronic Co., Ltd.

3/F, Building 8, Haosi Western Industrial Zone, Shajing St., Baoan Dist., Shenzhen, Guangdong, China (Mainland)

8.Guangzhou Chi Yang Electric Machinery Co., Ltd.

2/F, Building C2, Gaosha Industrial Estate, Zhongcun Avenue, Panyu Area, Guangzhou, Guangdong, China (Mainland)

Tel:02022862870

8.Guangzhou PSKY Electrical Co., Ltd.

Room 307, Zone E, Self-Compiled No. 8, Zhifu Rd., 106 National Road, Jiahe, Baiyun Dist., Guangzhou, Guangdong, China (Mainland)

9.Taizhou Jimyue Electronics Co., Ltd.

No. 79, Weiwu Road, Economic Development Area, Taizhou, Zhejiang, China (Mainland)

10.Guangzhou Grasse Environmental Technology Co., Ltd.

401, No. 116, Guangcong 4th Road, Zhongluotan Town, Baiyun Dist., Guangzhou, Guangdong, China (Mainland)

Tel:008602029016112

11.Laiyang Zixilai Environmental Protection Technology Co., Ltd.

No. A5, Heshan Road, Economical And Technical Development Zone, Laiyang, Shandong, China (Mainland)

12.Foshan Sennice Aromatic Factory

No. 12, Hengsan Road, Desheng Industrial Zone, Lishui Town, Nanhai District, Foshan, Guangdong, China (Mainland)

Tel:8613928688969

13.Shenzhen Annfly Technology Co., Ltd.

901, Bldg. 30, Zone 3, Zhangken, Minzhi St., Longhua New Area, Shenzhen, Guangdong, China (Mainland)

14.Hangzhou Puliheng Electronic Technology Co., Ltd.

(Crossing Of Xinxia Rd. And Jinshan Rd.) Industrial Park, Yiqiao Town, Xiaoshan District, Hangzhou, Zhejiang, China (Mainland)

15.Guangzhou Netech Environmental Technology Co., Ltd

Room 108, No. 18, Mubei West Street, Tianhe, Guangzhou, Guangdong, China (Mainland)

16.Guangzhou Ozone Environmental Technology Co., Ltd

3/F, Xingrui Building, No. 2, Dongheng 5th Road, Zhu Village, Tianhe District, Guangzhou, Guangdong, China (Mainland)

Tel:862022035572

17.Zhejiang Wowtech M&E Products Co., Ltd

Rm. 1104, Aokesi Mansion, Rili Middle Road, Ningbo, Zhejiang, China (Mainland)

18.Suzhou Hanbang Sterilizer Equipment Co., Ltd

No. 499, Jinsheng Road, Jinjiaba, Lili Town, Wujiang Area, Suzhou, Jiangsu, China (Mainland)

19.Shanghai Yim Machinery Equipment Co., Ltd.

Room 931, No. 15, Lane 201, Jinxiang Road, Pudong New Area, Shanghai, China (Mainland)

20.Shenzhen Ohmeka Technology Co., Ltd.

Rm. 1203, Bldg. B, Bulong City, Bulong Rd., Buji Street, Longgang District, Shenzhen, Guangdong, China (Mainland)

Tel:86075584552230

 

Air pollution causes 467,000 premature deaths a year in Europe so you need air purifier

Air pollution is causing around 467,000 premature deaths in Europe every year, the European Environment Agency (EEA) has warned.

People in urban areas are especially at risk, with around 85% exposed to fine particulate matter (PM2.5) at levels deemed harmful by the World Health Organization (WHO).

These particles are too small to see or smell, but have a devastating impact.

PM2.5 can cause or aggravate heart disease, asthma and lung cancer.

How big is the problem?

It’s pretty bad. Within the European Union (EU), more than 430,000 people died prematurely due to PM2.5 in 2013, the most recent year with figures available.

According to the EEA’s Air quality in Europe – 2016 report, the toxic gas nitrogen dioxide (NO2) – released by vehicles and central heating boilers – has an impact equivalent to 71,000 premature deaths a year.

Ground-level ozone (O3) is also killing people – an estimated 17,000 annually in the EU.

Unlike the protective ozone layer in the stratosphere, ground-level ozone is harmful, formed when emissions like NO2 react with other pollutants and “cook” in heat or sunlight.

A seagull flies through smog above the skyline of the City of London on April 2, 2014.

A chart showing the ten European countries with the worst levels of PM2.5

The European countries with the worst levels of PM2.5 are Bulgaria, Poland and the Czech Republic.

Nations like Poland where coal is a major source of electricity production tend to rank at the bottom of air quality measures, according to the EEA.

 

In 2013, Bulgaria provided four of the five worst European cities for high particulate matter. Costs to ill-health from coal power plants in the country are estimated to be up to €4.6bn ($4.8bn; £3.9bn) per year.

In the UK, air pollution overall costs the economy more than £20bn per year – just under 16% of the NHS’s annual £116bn budget.

Air pollution deaths mapTechnically, European air quality actually improved between 2000 and 2014. Levels of PM10 – another tiny pollutant particle – fell in 75% of the EEA’s monitored locations.

PM2.5 concentrations also dropped on average between 2006 and 2014.

But EEA executive director Hans Bruyninckx says “unacceptable damage to human health and the environment” is still rife.

Outdoor air pollution contributes to about 40,000 early deaths a year in the UK, according to the Royal Colleges of Physicians and of Paediatrics and Child Health.

 

SO,you should buy a air purifier in your school/home/office to improve air quanlity.

AS for this situation.I’ll introduce our company Olansi air purifier products.

031This product has big CADR with 200m³/h·Low noise 18db.In addition,it has humidification function.

 

 

 

 

 

 

 

 

 

Delhi smog and air pollution remains very high

You know you’re living in Delhi if your eyes burn, your throat is sore and your chest feels heavy. It’s been four days since Diwali night, however the cover of toxic air doesn’t seem to be lifting. The blame lies partly with the excessive fireworks display on Diwali night and partly with the farmers in Punjab who refuse to pay any heed to the environment and continue burning the crop stubble left behind after harvest.

There’s also the failed attempt by the Delhi government in vacuuming the dust off our streets whicdelhi air pollution, delhi pollution level, pollution in delhi, pollution in new delhi, air pollution in delhi, delhi smog pollution, delhi pollution news, Air Purifier, Air Purifier india, air pollution in delhi statistics, delhi air pollution report, delhi smog, delhi pollution level today, delhi pollution level 2016, air purifier for home, air purifier news, delhi news, India Newsh continues to be a major source of fine particulate matter available freely in the air. Combine expert medical advice that urges people to leave the National Capital (if they want to be healthy) along with more experts who say that the PM levels are unlikely to go down over the next few days, we’ve got ourselves a real fix here. While the government scrambles to figure out a plan to tackle the problem in the long run, what you can do immediately is get yourselves a few air-purifiers for your home and car. However, don’t go out and just buy any purifier, simply because it has a large price tag or a fancy brand name on it. Here are the essentials to look out for.

HEPA Filters

All modern air-purifiers feature High Efficiency Particle Arrestance (HEPA) Filters. These filters are generally rated to trap particles as small as 0.3 microns (the breadth of a human hair is about 50-150 microns). The particulate matter we are most concerned with is rated PM2.5 (particles that are 2.5-10 microns in diameter) and PM10 (10 microns or more in diameter). Therefore, any air purifier with a HEPA Filter should be able to remove much of the particulate matter from the air, but that won’t be enough.

When evaluating air-purifiers, having a HEPA Filter is a pre-requisite. Nowadays, there is some controversy over the effectiveness denoted by the word HEPA, so to be on the safe side, ensure that you buy an olansi air purifier that mentions having both a TRUE HEPA filter and a 0.3-micron rating at the very least.

 

air purifiers are supposed to work like lungs

In the absence of any government-set standards for indoor air quality, their efficacy rests more on anecdotal evidence than scientific assessment.

At their core, air purifiers are supposed to work like lungs. They work on the principle of sucking in air and passing it through a filter that traps particulates of various sizes. Some air purifiers also use ozone or air sprays to remove odour.

The key claim of air purifiers is that they trap particulate matter less than 10 microns thick. Were such matter to deposit in our lungs they would, over time, erode lung capacity and is equivalent to the damage done by smoking.

Whether air purifiers actually do a good job of making the air around you more breathable rests more on anecdotal evidence than scientific assessment. “You must see the response we get from our customers on how they have reduced asthmatic symptoms after installing our air purifiers,” says Vinayendra Jain, Director, Honeywell Connected Home India.

Business has never been better for Mr. Jain. In only its second year of selling air purifiers in India, sales have doubled, though Mr. Jain didn’t disclose numbers. Given Delhi’s high pollution levels, air purifier demand in the capital far outstrips that in other places, but the company’s products — that can range from Rs.8,000 to Rs.5,00,000 — are evincing interest from as far as Kanpur, Ahmedabad and Tiruchi.

“Outdoor air and indoor air are different subjects,” says Rakesh Kumar, director, CSIR-National Environmental Engineering Research Institute, “If the air outside has become twice as worse, it doesn’t mean air inside (a residence) has worsened as much.” Dr. Kumar says air purifier equipment in India hasn’t been calibrated to Indian air standards because the government hasn’t specified how it must be done so.

Air outside and inside the house

That’s why manufacturers can make claims on the efficacy of their purifiers without subjecting them to an investigation by local authorities. Indoor air has a different composition from outside. Air quality inside the house is determined by volatile organic compounds (from paints), bio-aerosols, nitrous oxides (from cooking gas), unlike air quality outside that is measured on the basis of particulate matter, carbon monoxide, ozone and sulphur dioxide levels. “The paradox is that indoor air quality doesn’t have standards for PM2.5 or PM10,” says Arun Sharma, professor, Community Medicine, University College of Medical Sciences, Delhi, “and India has no standards for indoor air quality.” That’s because there’s no agreed definition anywhere of what is an acceptable level of dust and other compounds within a home.

Dr. Kumar notes that well-ventilated homes are the best defence against pollution. “The background concentration of dust, especially in Delhi, is high and there is a natural acclimatisation by our bodies. Air purification systems are most effective in closed spaces… offices, shopping malls with poor ventilation,” he says. Dr. Sharma says that air purifiers do reduce particulate matter over a limited area, but whether they improved people’s health over the long term remains an open question.

Wildfire Smoke impacts people with Allergies & Asthma

People who suffer from bad allergies or asthma are always at risk for having problems during the Fall.

Dr. Mahipal Ravipati said it’s because there’s a lot of mold and pollen in the air. He said asthma attacks are very common around this year, and with the smoke in the valley it makes matters worse.

“With the smoke, not only is there carbon monoxide, but several other harmful particles that are very irritating to the lungs,” Dr. Ravipati said. He said many people may need to pull out their inhaler and keep it with them at all times.

He said the harmful particles from the smoke can cause people to be more prone to have acute asthma attacks, but there are ways to make sure you stay safe. He suggests avoid going outside as much, wear a mask, or even buy an olansi air purifier.

He said most people who have problems already know how to handle the extra harmful particles coming into the Tennessee Valley, but it’s best to be cautious.

 

As for  allergies or asthma, air purifiers can improve air mutual quality.

Suggestion for air purifiers: 

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Do you want to know more detail?Pls contact us by our email.^^

 

 

 

 

 

 

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

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You deserve it .