.Upgrade to an Aprilaire Whole House Air Cleaner with this easy-to-install conversion kit. or 16 x 25 in. This conversion kit frame is designed for use with any 20 x 25 in.
Genuine Blueair particle filter with added carbon foldable filter for the Blue Pure 211+ Air Purifier.. With its extra large filter area plus ultra-thin fiber construction, this filter provides high airflow and higher filtering capacity.
Part # AV-HF600..Replacement True HEPA Filter and a pack of two (2) replacement pre-filters for the Airvana 2-in-1 True HEPA Air Purifier and Humidifier.
Blueair Blue Pure 121 Pre-Filters capture larger particles for even more effiicent functioning of the main particle filter plus giving it a longer life.. Available in 5 colors.