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Pathogen
Something that can cause disease, such as a fungus, bacterium or virus.
Photo-catalyst
L2B's technology uses a UV light-activated catalyst to decompose organic compounds that are absorbed in its reflective coating. This "photo-catalytic" effect works by converting oxygen and water vapour in the air into powerful oxidants which break down the absorbed organics into harmless water vapour and carbon dioxide. This action maintains the UV coating at its peak reflectance for many years. It also reduces the levels of background airborne chemicals (VOCs) from paint fumes, cooking odours, carpet cleaning fluids and the numerous plastic articles found in modern residences.
In-flight kill
In-flight kill refers to the way L2B units kill airborne pathogens as they pass through the air inside the unit. This contrasts with UV units that kill pathogens that are trapped on filters. Such units need to trap the pathogens before they can be killed. Unless such units employ HEPA filters, they are ineffective against viruses, which are 100X smaller than the pores of most filters. If they do use HEPA filters and process as much air as the L2B units, the cost of the filters and operating cost would be several times greater than the cost of an L2B unit.
Volatile Organic Compounds (VOCs)
Any organic compound present in the air. Common VOCs include Formaldehyde (from insulation), Benzene (from gasoline), Toluene (from paints and nail polish) and chloro-organics (from chlorinated water, paint solvents and plastics). The US EPA (Environmental Protection Agency) has said that indoor air quality in residences can be worse than that in industrial sites.
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