What to look for when choosing an air cleaner

The potential effectiveness of the device under the conditions it will be used.
The need for routine maintenance, including cleaning and replacement of filters.
The estimated capital and maintenance cost.
The installation requirements (e.g., power, access).
The manufacturer's recommended operating procedures.
The possible production or re-dispersal of pollutants, such as ozone, particles, formaldehyde and trapped gaseous pollutants.
The inability of some air cleaners to control gases and some odors, such as those from tobacco smoke.
Possible health effects from charged particles produced by ion generators.
Possible soiling of surfaces by charged particles produced by ion generators.
The noise level at the air flow rates that will be used.


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