Ultraviolet light possesses just the right amount of energy to break organic molecular bonds. As microorganisms pass by the UV rays radiated from the ultraviolet lamp, this bond breakage translates into cellular or genetic damage for microorganisms, such as germs, viruses, bacteria, fungi (like molds), etc. This resulted in the destruction of the microorganisms. The same damage occurs to humans, but is limited to the skin and eyes. UV air purifiers, such as the Multi-Tech XJ-3000C from Surround Air, shield direct ultraviolet light from escaping the inside of the unit, sterilizing only the air that passes through the air cleaner. The Centers of Disease Control (CDC) recommends the use of ultraviolet light with simultaneous use of HEPA air filters, both of which are offered in the Multi-Tech XJ-3000C air purifier. The U.S. government now specifies that UV light should be used in air handling units to improve indoor air quality in government buildings, by controlling airborne and surface microbial growth. The Air Institute of Respiratory Education suggests UV lights be used in buildings for indoor air quality purposes, and states that may be the final line of defense against those diseases that have developed resistance to drugs, such as tuberculosis and others. According to the Aerobiological Engineering Dept. at Penn State University, the ultraviolet component of sunlight is the main reason microbes die in the outdoor air. The die-off rate in the outdoors varies from one pathogen to another, but can be anywhere from a few seconds to a few minutes for a 90-99% kill of viruses or contagious bacteria. The Centers of Disease Control (CDC) recommends UV lights in homeless shelters to prevent the spread of disease, particularly TB (tuberculosis). A study by Air & Waste Management Association found the combination of a HEPA air filter and germicidal UV lamp reduced bacteria by 80% in a 3072 cubic foot chamber.
UV lamps reduce worker sickness
Germicidal UV Lamp. The most effective way to destroy micro-organisms, such as germs, viruses, fungi (such as mold) and bacteria