Air Purifier Purchasing Tips

October 10, 2017

Air Purifier Purchasing Tips

Before making an air purifier purchase, shoppers should assess their home and choose the purifier's location. Also, measure the room's length and width in order to bring home the right unit size. Review the height of the ceiling since exceedingly high or vaulted ceilings may require more air purifying power. If the home features an open floor plan, then shoppers may need to air purifiers with one placed on each end of the home.


Homeowners will have additional energy expenses with an air purifier because the device will run continuously. The size and power levels of the device will determine the appliance's energy use. While shopping for a purifier, check the unit's power levels, which may list watts or volts and amps. If the purifier label includes volts and amps, then calculate the watts by multiplying the two energy forms.


When an air purifier is on its low setting, the device should use around 50 watts while its high setting may use around 200 watts. Homeowners can compare the watt levels to a table lamp, which uses about 60 watts. A home computer uses around 365 watts.
When shopping for an air purifier, be sure to review the unit's Clean Air Delivery Rate, or CADR, which will list a number of cubic feet of air that the device will cleanse each minute. With a higher CADR number, the device will clean air more quickly.


As consumers shop for a properly sized unit, they can measure the CADR number that their home needs. For example, if a room is 10 feet by 12 feet, then the total square footage is 120. The number 120 should then be multiplied by 0.75, which is 90, to achieve the correct CADR number for their space. If the exact CADR number is not available, then increase the unit size as a slightly larger unit will provide the correct amount of clean air.