do air purifiers keep out pollution? - carbon air purifier

The core of the air purifier should be to work like a lung.
Their working principle is to suck in the air and filter particles of all sizes through a filter.
Some air purifiers also use ozone or air spray to remove odors.
The key claim for air purifiers is that they capture particles less than 10 microns thick.
If this substance is deposited in our lungs, they will erode the lung capacity over time, equivalent to the damage caused by smoking.
Whether the air purifier really makes the air around you more breathable is based on anecdotal evidence rather than a scientific assessment.
"You have to see how our customers respond to how they reduce asthma symptoms after installing our air purifiers," said Vinayendra Jain, director of Honeywell Connected Home India . ".
Business has never been better for Sir than thisJain.
Sales of air purifiers doubled in the second year in India.
Jain did not disclose the data
Given the high pollution levels in Delhi, the demand for air purifiers in the capital is far more than anywhere else, but the company's products
Can be from Rs. 8,000 to Rs. 5,00,000 —
People have been interested in it since Kanpur, Ahmadinejad and Tiruchi.
Rakesh Kumar, director of CSIR, said: "Outdoor air and indoor air are different themes
The National Institute of Environmental Engineering, "if the air outside gets worse, it doesn't mean the air inside (a residence)
It has deteriorated a lot. ” Dr.
Kumar said air purifier equipment in India was not calibrated according to Indian air standards because the government did not specify how to perform the calibration.
Air inside and outside the house, which is why manufacturers can claim the efficacy of their purifiers without being investigated by local authorities.
The composition of indoor air is different from that of outdoor air.
Indoor air quality is composed of volatile organic compounds (from paints), bio-
Aerosol, nitrogen oxide (
Gas from cooking)
Unlike external air quality measured based on particulate matter, carbon monoxide, ozone and sulfur dioxide levels.
"The contradiction is that there is no standard of pm2. 5 for indoor air quality.
Arun Sharma, a professor of community medicine at Delhi University School of Medicine, said: "5 or 10 pm, India has no standard for indoor air quality.
"This is because there is no consistent definition of acceptable levels of dust and other compounds in the home. Dr.
Kumar noted that good
Ventilated housing is the best choice to prevent pollution.
"The background concentration of dust is very high, especially in Delhi, and our body will naturally adapt.
He said: "In a closed space, the air purification system is the most effective . . . . . . Offices, shops with poor ventilation . ". Dr.
Air purifiers do reduce particulate matter in limited areas, Sharma said, but whether they can improve people's health in the long run remains an open question. jacob. koshy@thehindu. co.