What is a HEPA air purifier? How does the mechanism work?

Living in a clean environment is the desire of many people, but the air is increasingly polluted. HEPA air purifier is the solution that many people trust. So what is a HEPA air purifier, let’s find out with Tnhelearning.edu.vn.

What is a HEPA air purifier?

HEPA, this is an acronym for the English phrase “High Efficiency Particulate Air” . This phrase was originally the name of the technology to filter radioactive particles polluting developed by the United States Atomic Energy Commission in the 1940s.

Products with the HEPA label are highly effective at capturing microscopic particles, including most dust, dander, pollen, mold, and other common household allergens.

HEPA filter is composed of a mesh with many randomly arranged glass fibers, the diameter of the fibers is only 0.5 – 2 micrometers , so it is easy to catch microscopic particles that ordinary filters cannot catch. Okay. HEPA filter is capable of filtering 99.97% of particles as small as 0.3 microns.

To visualize this size, for example a human hair is 5 microns in size, 7 times larger than the smallest allergen .

How HEPA air purifier works

HEPA air purifiers work by drawing air into the unit through a dense filter, which blocks airborne contaminants from entering the filter and pushes clean air out.

This process repeats continuously , the device will keep our room free of contaminants and at the same time prevent the contaminants from escaping outside.

Advantages and disadvantages of HEPA air purifiers

Advantages of HEPA air purifier:

• HEPA air filters can filter out allergens such as dust, pollen, mold, and pet dander.
• HEPA air purifiers are the best choice for people with asthma or allergies with their ability to remove most pollutants.

Disadvantages of HEPA air purifiers:

• One of the main disadvantages of HEPA filters is the inability to remove odors (additional activated carbon filters are required to remove odors).
• HEPA air purifiers are quite expensive.

You should buy an air purifier that uses a compostable HEPA filter , or you can buy an air purifier with a permanent filter that is expensive, because the permanent filter is washable and recyclable . use .

Price is a concern when you buy any device, but the benefits they bring are extremely worthwhile.

Above, Tnhelearning.edu.vn has explained to you about HEPA air purifiers. Hope you will choose for your family a satisfactory air purifier to protect the health of yourself and your family members!