Ever wonder what HEPA means or does. Well we put Wikipedia to work and this is what we came up with. “HEPA filters remove 99.97% of airborne particles 0.3 micrometers in size; HEPA (High Efficiency Particulate Air). They were first designed in the 1940’s for use with the Manhattan Project to prevent the spread of airborne radioactive contaminants. Today a HEPA filter rating is applied to any highly efficient air filter as tested to an industry standard. Vacuum cleaners are the most common household appliance that uses the HEPA filter as part of their filtration system. This is very beneficial for asthma & allergy sufferers.” So there you have it in a brief, HEPA use is good for us. Thanks for reading.