Filter recommendations for Airborne Exposures to Particulate Air Pollution

Particulate Filters Commonly Used in most Cities of China
Particulate Filters Commonly Used in most Cities of China

Once again the topic of air pollution is not only a concern for those who work at industries and factories. This is a problem that many countries have to face day by day due to the high toxic components that pollute the air. Countries with high density of pollution such as China, India, Iran, the US, and Mexico, have significant health problems among their population due to this pollution issue, no matter that, many people use some kind of protection to go outside in the streets and get the less of it.

One of the better ways to prevent any kind of illness caused by this environmental problem, is per say, to use respiratory filters. 3M brand has created many kind of filters that can help with the issue by wearing them not only at the work places but also on a daily basis.

Although no respirator eliminates exposure completely. To help reduce exposure to airborne particulate matter, it is very important to select a government-approved respirator and to follow the fitting instructions and user instructions carefully, including performing a user seal check. Disposable particulate respirators, such as filtering face piece style respirators, typically come with a government-designated rating:

• In the U.S., respirators are approved by the United States National Institute for Occupational Safety and Health (NIOSH). NIOSH classifies particulate respirators into one of three main classes — N (not resistant to oil), R (somewhat resistant to oil), and P (oil proof). NIOSH ratings are applied with particulate filtration efficiency of 95%, 99%, and 99.97%; N95 respirators are commonly used to help reduce exposure from non-oily particulates, such as air pollution particulates.

• In the Chinese standard, particulate respirators are divided into two classes: KN and KP classes. KN class respirators only filter non-oily particles, such as dust, mist and microorganisms. Particulate air pollution is typically considered a non-oily particulate. KP class filter respirators can be used for both oily and non-oily particulates. China-approved respirators are also available with several filtration efficiency: 90%, 95% and 99.97% efficiency. KN90 and KN95 respirators are commonly used to help reduce exposures to non-oily particulates such as air pollution particulates.

 

3M states that particulate respirators usually will not help reduce exposures to gases and vapors such as ozone, sulfur dioxide and nitrogen dioxide. If a respirator is desired to help reduce exposures to gases and vapors, then a respirator with a particulate filter in combination with a carbon cartridge for acid gases and organic vapors can help reduce exposures to ozone, sulfur dioxide and particulate matter. However, nitrogen dioxide and carbon monoxide cannot be filtered by conventional respirators with filters and carbon cartridges.

Up next are several widely-available 3M™ Disposable Filtering Facepiece Particulate Respirators that may be suitable to help reduce exposures to particulate air pollution:

3M™ Model Style Valve Respirator Description
8210 Cup no NIOSH-approved particulate N95 filtering facepiece respirator to help reduce exposures to airborne particulate, including PM 2.5 and PM 10.
8110S Cup no
9210 Flat no
9211 Flat yes
9105 Flat no
8210CN Cup no 8210CN and 8511CN have dual approval as a U.S. NIOSH N95 particulate respirator and as a China GB2626-2006 KN95 particulate respirator to help reduce exposures to airborne particulate, including PM 2.5 and PM 10.
8511CN Cup yes
8247CN Cup no Particulate filtering facepiece respirator with nuisance level organic vapor odor relief to help reduce exposures to airborne particulate (includes PM 2.5 and PM 10) and nuisance levels of ozone odor. Dual approval as a U.S. NIOSH R95 particulate respirator and as a China GB2626-2006 KN95 particulate respirator. 
8577CN Cup no Particulate filtering facepiece respirator with nuisance level organic vapor odor relief to help reduce exposures to airborne particulate (including PM 2.5 and PM 10) and nuisance levels of ozone odor. Dual approval as a U.S. NIOSH P95 particulate respirator and as a China GB2626-2006 KP95 particulate respirator. 
8246CN Cup no Particulate filtering facepiece respirator with nuisance level acid gas odor relief to help reduce exposures to airborne particulate (including PM 2.5 and PM 10) and nuisance levels of sulfur dioxide odor. Dual approval as a U.S. NIOSH R95 particulate respirator and as a China GB2626-2006 KN95 particulate respirator.

*The 8110S is a smaller size respirator similar to the 8210.

 

Take in consideration this are only recommendations that can help you get the filter that can best fit your needs. Anyway 3M nor GPR are responsible of the filter you select, the efficiency of the filter may vary upon the application and appropriate use depending on the environmental deficiencies.

If you need further assistance trying to locate the filter that will best fit your needs, do not hesitate to contact your local 3M Technical Services Helpline or your nearest 3M distributor.

 

References: 3M Safety Division:

http://multimedia.3m.com/mws/mediawebserver?mwsId=SSSSSuH8gc7nZxtUPx2G58_ZevUqe17zHvTSevTSeSSSSSS–

Shop at:

http://www.gprindustrial.com/en/35-respirators