HEPA filters are air filters that remove 99.97% of airborne particles with a size of 0.3 microns or larger. HEPA stands for high-efficiency particulate air, and these filters are commonly used in clean rooms, hospitals, and other critical environments where air quality is important.
HEPA filters are made of a pleated paper or fiberglass material that traps particles as they pass through the filter. The filters are typically rated by their efficiency, which is measured by the percentage of particles that are removed from the air. HEPA filters are considered to be very efficient and can remove a wide range of particles, including dust, pollen, bacteria, and viruses.
