Are PM1 Particles More Dangerous than We Think?

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PM1 particles are ultra-fine particles which are inhalable and penetrate directly through the lungs and may run into bloodstreams.

AAF (American Air Filter), air solutions provider stresses on protection from PM1 (Particulate Matter 1) particles. Ultrafine PM1 dust particles can get deep into your lungs and even get into your bloodstream and can thus spread to the organs.

PM- Particulate Matter in the air is a mixture of solids and liquid droplets. PM particles are characterized as PM10, PM2.5 and PM1 particles. PM10 particles have 10-micrometre diameters in size and PM2.5 will be 2.5-micrometre diameter which is visible and noticeable. But PM1 particles are microscopic solids or liquid droplets. These smallest airborne particles have the greatest potential health problems because they can get deep into your lungs and even get into your bloodstream and are thus spread to the organs.

Outdoor air pollution plays a significant role in indoor air exposures. Due to ventilation providing continuous air exchange in buildings, the indoor air exposure to fine PM originates mostly from outdoor air, especially in areas affected by heavy traffic. The second most important source of exposure comes from the indoor combustion of solid fuels for cooking and heating (if present).

Are PM1 Particles are More Dangerous than We Think
Bad ambient air quality sources

The outdoor air fine PM originates mostly from combustion sources, local and distant, where the levels exceed rural background.

Pic 2. Pictorial representation of health effects of PM1 particles
Pictorial representation of health effects of PM1 particles

What is often not acknowledged is that in strongly polluted areas (e.g. heavy-industry zones, city centres with heavy traffic) without air filtration, over 90% of ambient PM levels monitored outdoors, occurs indoors. Applying correctly selected, efficient air filters in ventilation systems can significantly reduce the impact of PM exposure on the Burden of Disease (BoD). PM1 Air filters protect the indoor environment by filtering PM1 pollutants with an aerodynamic diameter of fewer than 0.1 micrometres.

Rajkumar Maurya
Rajkumar Maurya is the H2S Media tech expert. He’s always been passionate about technology and has been writing on the subject since 2014. He has extensive knowledge of all kinds of technology, from consumer-tech to enterprise solutions. You can contact the author at--


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