The Trebs 49201 air purifier filter is a HEPA H13 filter designed for the Trebs air purifier 49200. This replaceable HEPA H13 filter ensures that 99.97% of allergens in the air are removed, helping to relieve asthma symptoms. After intensive use, the filter should be replaced to continue providing clean air in your home.

What is a HEPA filter? HEPA originally comes from aerospace technology and is now used in air purifiers to filter pollutants from indoor air. HEPA stands for high efficiency particulate air. HEPA filters retain a minimum of 85% and a maximum of 99.999995% of all dust particles (most penetrating particle size) of 0.1 micrometer (µm). HEPA filters are classified into different categories, with classification H13 indicating a filtration efficiency of 99.75% to 99.97%, effectively capturing all dust particles larger than 0.1 micrometers (µm).

How does a HEPA filter work? A HEPA air purifier contains a fan that moves the air. The air is drawn in and then passes through the HEPA filter, which removes dust particles before the clean air is blown back into the room.

What can a HEPA air purifier filter? A HEPA air purifier filters particles as small as 0.1 microns from the air with an effectiveness of 99.97%. One micron is one millionth of a meter, making it very small. For reference, a human hair is about 70 microns thick and just visible to the naked eye. A HEPA air purifier removes various contaminants from the air, including coarse dust, fine dust, smoke components, mold, viruses, bacteria, aerosols, pollen, dander, and allergens from house dust mites.

A HEPA air purifier requires periodic maintenance to function properly. The HEPA filter becomes contaminated with use and must eventually be replaced. To maintain clean air, it is essential to replace the HEPA filter regularly. Used HEPA filters are not reusable and should be disposed of as waste after use.

What's in the box? HEPA H13 filter.