Tuesday, July 26, 2011

Hepa Air Purifier

Hepa Air Purifier is a device which removes contaminants from the air. These devices are commonly marketed as being beneficial to allergy sufferers and asthmatics, and at reducing or eliminating second-hand tobacco smoke. Commercial grade air purifiers are manufactured as either small stand-alone units or larger units that can be affixed to an air handler unit (AHU) or to an HVAC unit found in the medical, industrial, and commercial industries.

HEPA stands for "High-Efficiency Particulate Air". A HEPA filter is a type of air filter that satisfies certain standards of efficiency such as those set by the United States Department of Energy. By government standards, an HEPA air filter must remove 99.97% of all particles greater than 0.3 microns from the air that passes through.