What is a HEPA rating?
HEPA is a type of pleated mechanical air filter. It is an acronym for “high efficiency particulate air [filter]” (as officially defined by the U.S. Dept. of Energy). Using the worst case particle size results in the worst case efficiency rating (i.e. 99.97% or better for all particle sizes).
What are the grades of HEPA filters?
True HEPA generally ranges from H10-H12. This is the “grade” of HEPA or the level of efficiency. The higher the grade, the better the filter. HEPA H13-H14 are within the highest tier of HEPA and are considered medical grade quality.
Can true HEPA filter coronavirus?
Air purifiers with HEPA filtration efficiently capture particles the size of (and far smaller than) the virus that causes COVID-19, so the answer is yes. It falls squarely within the particle-size range that HEPA filters capture with extraordinary efficiency: 0.01 micron (10 nanometers) and above.
What is the best HVAC filter?
Top 10 Best HVAC Air Filters for Home in 2019 Reviews 10. Flanders PrecisionAire 84857.011418 NaturalAire Odor Eliminator Air Filter 9. Electrostatic Air Filter Replacement 8. Aprilaire 210 Air Filter for Air Purifier Models 7. E-Z Flow Heavy Duty Air Filter, MERV 6. True Blue Allergen 12x36x1 Air Filter, MERV
What is the best air filter for mold?
The best type of air purifier for mold usually has a HEPA filter and an activated carbon filter that works to remove both small particles and chemical gases from the air. The HEPA filter can effectively capture 99.97% of 0.3 micron particles and mold spores are usually between 1-20 microns large.
A HEPA rating is a statement indicating the minimum percentage of a specific size particle that a filter is able to trap. HEPA stands for high efficiency particulate air filter; for a filter to earn this designation, it must have a specific minimum rating to qualify.