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Did you know indoor air quality on average is two to five times more polluted than outdoor air?
The COVID-19 pandemic has dramatically increased awareness and concern levels about indoor air quality. Suddenly people started worrying about the tiny particles we breathe in, and they also became interested in how air filters protect against these particles and other pollutants.
Camfil has been concerned about this topic for almost fifty years, and we want to help you understand your options for improving indoor air quality.
There are two main types of indoor air pollution control: air filtration and dust collection. While they both have the same main goal of removing harmful particles from air inside buildings and structures, there are key differences.
What is Air Filtration?
Air filtration is the HVAC technology that ensures that the air inside buildings is clean and safe to breathe. Most commercial HVAC systems provide ventilation first and foremost to continually brings fresh air into the building and filter the recirculated air. According to the American Lung Association, the more air circulates, the less chance viruses have to spread.
However, unwanted particles still make their way inside – particles like dust, chemicals, off-gases from new furniture or carpet, or residual fumes from paint, bacteria, viruses, smoke, cooking odors, outdoor pollen, mold and fungi.
These airborne particles are called particulate matter (PM) and are categorized by the World Health Organization (WHO) according to their size. PM1 includes soot and viruses, PM 2.5 includes bacteria, PM 10 includes fine dust and pollen.
The smaller, the particle, the more dangerous it is because it can enter the cells of the body and become trapped there.
There are a wide variety of air filters in use today from the flat panel filters common in most home HVAC systems to large V-bank style and bag filters for commercial applications with high airflow. Regardless of the style, air filters remove…
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