Air Purifier Factors
Air purifiers are not just for people with allergies, people with asthma or people who smoke as indoors air quality is five times inferior than outdoor air quality, on an average.
The number of times per hour an air purifier distributes clean air is known as Air Changes per Hour (ACH). This number can be particularly useful for people with asthma or allergies, while choosing an air purifier.
If this device is to be placed in the bedroom, noise is definitely an important consideration. Since they need a stronger fan to drive the air through the air filter, the mechanical air purifiers can be noisier. Ionic air purifiers are the quietest systems.
Checklist for purchasing an air purifier
- A unit with a high percentage of particulates removed from the air, with the capability of trapping a small particle size
- Air volume capacity with respect to the recommended room size of the unit, generally expressed in square feet
- Specific health concerns with respect to any specific substance that is required to be removed
- Reputation of the manufacturer
- Indoor factors
- Operating cost including replacement of filters
- Construction quality
- Ease of use including changing filters, operating, and cleaning
- A comprehensive, long-term warranty
- Operating noise should be determined by asking for operating noise values (expressed in decibels). Quieter units measure around 35 decibels.
When using an air purifier
- Room-size units should be installed in rooms where most of the time is to be spent or where the quantity of pollution is maximum
- The units should be located as close as possible to any identifiable pollution source
- So that air may easily reach the air purifier, the unit should be located away from doors, windows, but not close to walls, corners, furniture, or other obstructions.
- The air purifying units should always be maintained and used as per the instructions provided by the manufacturer.
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