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air pollution in city

Poor air quality can lead to premature death

Although awareness around air pollution is on the rise, the serious side effects of pollution are still relatively unknown. In the past, pollution has been known to cause asthma and chronic obstructive pulmonary disease (COPD), but more recently, studies have also linked air pollution to sleep issues, dementia and even death. Around the world, 4.2 million people die prematurely from pollution.

A premature death is defined as a death that occurs earlier than the average life expectancy of that country. The countries most affected by this are China and India, where air pollution accounts for half of the deaths. However, this issue is not concentrated to just one part of the globe—in 2015, air pollution was the fifth leading cause of death in the US.

Where does the deadly pollution come from? In the atmosphere, fine particulate matter is generated by coal burning, power plants and vehicles. Around the home, common sources include coal, wood and charcoal, used for cooking or heating.

As you may guess, these forms of air pollution tend to affect more people in newly industrialized and developing countries, where household emissions cause a third of pollution-related deaths. Additionally, research has shown that poorer countries are often disproportionately affected by fatal pollution. This effect is often due to wealthier countries exporting manufacturing (and the pollution it creates) to emerging economies with laxer environmental standards.

Consequently, countries with high levels of pollution are experiencing an increase in deaths due to air pollution. In India, for example, there was an increase of 133,000 annual deaths due to air particulates, according to the most recent data. Meanwhile, in developed countries, there is a downward trend. The United States has seen a 27% decrease in deaths caused by air pollution, while China’s rate of premature deaths is beginning to stabilize.

Whether you’re concerned about the air in your home, or looking to fight symptoms of asthma and allergies, an air purifier is one way to make sure you’re breathing cleaner air.


1Coway air purifiers has been proven to trap dust, pollen, dander, viruses and bacteria in the air based on KCL (Korea Conformity Laboratories) testing.They have been tested in a 30㎥ size chamber according to the Korea Air Cleaning Association standard (SPS-KACA 002-132:2022 Modified) to measure the 0.01㎛ size of particle removal rate. It was tested on maximum airflow speed in normal room temperature and humidity conditions. The performance may vary in the actual living environment of customers.
→ Tested with Airmega Aim, 150, 160, AP-1216L, AP-1512HH, AP-1512HHS, 200M, Icon, IconS, 230, 240, 250, 250 Art, 250S, 300, 300S, 400, 400S, ProX

299.97% of viruses, bacteria, fungi and pollen were verified to be removed from the air for Coway air purifiers which have Green True HEPA™ filter applied based on the Japan Food Research Laboratories(JFRL) testing according to JEM 1467 standard.
→ Tested with Coway Airmega AP-1512HH, AP-1512HHS, 250, 250 Art, 250S, 300, 300S, 400, 400S
→ All tested by JFRL and received above result within below time.

All tested by JFRL and received above result within below time.

- Virus: Tested with Escherichia coli phage ΦX174 NBRC 103405, 60 minutes
- Bacteria: Tested with Staphylococcus epidermidis NBRC 12993, 60 minutes
- Fungi/Mold: Tested with Penicillium citrinum NBRC 6352, 60 minutes
- Pollen: Tested with Cedar Pollen extract, 60 minutes

3Aerosol test conducted in a Biosafety level 3 laboratory with two Coway air purifier models, Coway Airmega 250 and 400 for removal of SARS-CoV-2 Aerosol by US based MRI Global, a not-for-profit laboratory and partner of US Department of Defense. The test was conducted in a 13.1ft3 chamber. Virus was aerosolized for 15 minutes and the product was turned on high for 2 minutes. Result showed each product effectively removed over 99.98% of the SARS-CoV-2 in 2 minutes. This is a result from a laboratory experiment condition and result may vary in different conditions. This result does not imply it kills SARS-CoV-2 or prevents the transmission of Covid-19. Coway Airmega 250S and 400S are identical to the tested models and has equal performance with an additional mobile connectivity function.

4The concentration of ammonia, acetaldehyde and acetic acid were proven to be removed within 30 minutes by FCG Research Institute, Inc. Human Life Science Lab. It is not a demonstration result in the actual use space. Not all odors and gases may be supported. → Tested with Coway Airmega 150, 160, AP-1512HH, AP-1512HHS, 400, 400S

5The coverage area of the air purifier is based on an area where the air cleaner can make two air changes per hour (ACPH). An air change per hour translates to how many times an air purifier can clean an area, assuming the height of a ceiling to be 8 ft, in one hour. Therefore ** means two air changes per hour means that the cleaner can clean the area once every 30 minutes and * means air changes per hour means that the air purifier can clean the area once every 60 minutes.

10Terms and conditions apply. Discounts, including promotions, coupons, bundle discount and subscription discount, cannot be stacked on top of other coupons. During promotional periods, discount codes will not be able to be applied to orders. Promo codes may apply to products only—filters, accessories, and new products within 3 months of the release date are not included.