Air Purifier
Information on Air Purifiers and Air Cleaners

AIR PURIFIER SECTIONS
All Air Purifiers
Home Air Purifiers
Room Air Purifiers
Ionic Air Purifiers
Commercial Purifiers
HEPA Air Purifiers
Air Purifiers Reviews
Compare Air Purifiers
AIR PURIFIER  BRANDS
IqAir
Blueair
Airfree
Biozone
AustinAir
Neoair
AIR PURIFIER FILTERS
IqAir Filter
Blueair Filter
AustinAir Filter
Neoair Filter
TECHNOLOGY CENTER
Air Cleaners Guide
HEPA Air Filters
Ionizers
UV Air Purifiers
Ozone Air Purifiers
Activated Carbon
Air Purifier Questions
LEARNING CENTER
Allergies Information
Asthma Relief
Mold Control
Sinus Relief
Pet Allergies
Dust Mites

What is a HEPA Filter and how it works?

HEPA stands for High Efficiency Particulate Arrestance. Invented by the military back in the fourties it was used to filter out radioactive dust and biological contaminants from the air .



What’s the deal with 0.3 micron or less? Does an hepa filter capable to reduce particulates smaller than that?


Yes of course, only at a different extent. But first lets define MICRON: A micron is a measure of length: "1 micron equals 1 millionth of a meter". A particle that is 10 microns or less in size is not visible to the naked human eye.

Now, an hepa filter that is certified to filter out 99.97% of particles at 0.3 micron it is also capable to filter out smaller ones with an efficiency less that 99% efficiency.



SiteMap All Air PurifiersHome Air PurifierRoom Air PurifierIonic Air PurifierHEPA Air PurifierCommercial Air Purifier
Air Purifier ReviewsCompare Air PurifiersLinks