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Air Purifiers and Air Cleaners

May 23, 2008  |  Difficulty: Easy

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Statistics show that on average people spend 90% of their time inside. Still, more research shows that the air indoors is frequently more contaminated with particulates and pollutants than air outdoors.  As a result, children, elderly and asthmatic people can be particularly susceptible to respiratory problems provoked by unclean air.

As a solution, home and business owners can use air purifiers and air cleaners.  These devices treat indoor air, often removing additional particulates and gases, to make it cleaner and healthier.

What Pollutes Indoor Air?

Particulates are one common type of indoor pollutant. Some examples are:
  • Mold
  • Pollen
  • Dust mites
  • Pet dander
  • Fungal spores

Particulates are liquid or solid matter that is miniscule enough to float in the air. As noted above, particulates can be composed of living organisms (fungal spores) or non-living substances (pet dander). Bacteria and viruses can also become particulates and transport through the air. Gaseous pollutants are the other form of common indoor pollutant. Some examples are:
  • Nitrogen oxide
  • Nitrogen dioxide
  • Cigarette smoke
  • Vehicle exhaust
  • Carbon monoxide
  • Chemicals released from:
  • Plywood
  • Insulation
  • Particleboard
  • Gas appliances

Two types of air cleaners are suited for home use:

  1. Movable air cleaners with connected fan.
  2. In-duct filtration systems.
  • Filters are installed with the following units:
  • Heating
  • Ventilation
  • Air conditioning



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