Portable air purifiers normally include a fan to flow the air and these air purifiers use one or more of the air cleaning devices along with that which are called as Air filters. Portable air purifiers can be moved from room to room and used when uninterrupted and confined to a small area air cleaning is required. They are mostly used as an option if a home or offices where it is not equipped with a central HVAC system.
Portable air Purifiers can be assessed by their efficiency in reducing airborne pollutants. This effectiveness is measured by the clean air delivery rate, or CADR, developed by the Association of Home Appliance Manufacturers, or AHAM. The CADR is a quantify the portable air cleaner’s delivery of contaminant-free air, articulated in cubic feet per minute.
For example, if an air Purifier has a CADR of 250 for dust particles, it may reduce dust particle levels to the same concentration as would be achieved by adding 250 cubic feet of clean air each minute.
Many of the portable air purifiers qualified by AHAM have moderate to large CADR ratings for small particles.
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