What is HEPA?
A HEPA, High Efficiency Particulate Air, filter is a type of air filter that satisfies certain standards of efficiency and are able to remove up to 99.9% of airborne particles that are 0.3 micrometers in diameter.
The first HEPA filter was designed in the 1940's to prevent the spread of airborne radioactive contaminants by the Manhattan Project. By the 1950's, HEPA filters became commercialized. Over the years, the HEPA filter has become in demand by those seeking better indoor air quality.
There are many variations of HEPA filters, but only those wich have passed a test can be considered True HEPA. HEPA-type or HEPA-like filters might be made similar to True HEPA filters but these filters do not meet the same standards. When deciding on filter make sure it meets the standards of a True HEPA to keep your family and home healthy.