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Air changes per hour (ACH) describes the number of air exchanges a unit can make for a particular room in on hour at the highest fan speed.
Activation increases the surface area of the carbon. When toxic chemicals come in contact, intermolecular forces draw them into the millions of pores and pockets on the surface of activated carbon.
Also known as air purifiers, remove airborne particles including dust mites, pollen, molds and pet allergens. Some air cleaners also remove chemicals from the air.
Biological aerosols are airborne living organisms or their by products including fungi, bacteria, viruses, dust mites, mold spores and pollen. Health risks include: allergy, asthma, infectious disease and toxic response.
Cubic feet per minute (CFM) is the measurement of how much air passes through the unit. In an Austin Air Standard, the CFM without the filter is 400 and with the filter it is 250.
Chemisorbers are added to the activated carbon to help break down large molecules (VOC’s) into smaller ones so they are more easily adsorbed by the filter. Austin Air uses Potassium Iodide in the HealthMate Plus (HM450).
A decibel (dB) is a unit of measurement to determine sound intensity.
HEPA-High Efficiency Particulate Air is a standard of filtration established by the Atomic Energy Commision (AEC) in the 1940’s. HEPA media captures 99.97% of particulates in the air down to 0.3 microns in size. Current research by NASA has shown that true medical grade HEPA captures particulates down to 0.015 micron in size.
HEGA (High Efficiency Gas Arrestance) is a special woven activated carbon cloth for gas and odor adsorption. For protection against chemicals, gases and biological threats, including viruses and bacteria and is both anti-microbial and virucidal.
Humidity affects the growth and proliferation of bio-aerosols including dust mites, mold spores and infectious diseases including bacteria and viruses. Maintaining a relative humidity of 40 – 60 % is helpful in managing bio-aerosols.
IAQ stands for Indoor Air Quality and refers to the level of pollutants found in the air inside closed spaces such as homes and offices.
Asbestos, Biological Pollutants, Carbon Monoxide (CO) Formaldehyde/Pressed Wood Products, Lead (Pb), Nitrogen Dioxide (NO2), Pesticides, Radon (Rn)
Health problems caused by microorganisms including bacteria, viruses, fungi and parasites.
Many “air purifiers” feature UV, ionization and plasma technology. These products produce ozone, a known lung irritant that increases the incidence of allergies and asthma.
Micron, or micrometer, is a unit of size equal to 1/millionth of a meter or .00004 inches.
VOCs (Volatile Organic Chemicals) are gases or liquids that evaporate quickly. These carbon based substances include; petroleum, disinfectants, sterilants, solvents, and perfumes.
Tiny particles (liquids or solid) that are suspended in the air including dust, pollen,and bio-aerosols.
PM2.5 Particulate Matter that is smaller than 2.5 Microns. High levels of PM2.5 are a health hazard.
Mold that produces mycotoxins including Stachybotrys chartarum (Black Mold) and Aspergillus.