Our Purrified Air replacement filter cartridges come in a sealed vacuum bag for long-term storage.

Filter media cartridge contains 2.2 pounds (one kilogram / 35.2 ounces) of a proprietary blend of activated carbon， zeolite， catechin， and negative ion ceramic balls， plus a filter pad to capture kicked up litter dust and pet dander. 

In April 2022 we introduced a new "tackifide" filter pad treatment which captures more dust and dander， and also provides a more potent catechin phase.  We borrowed this technology from the furnace filter industry. Furnace filters with an application of a tacky coating capture more dust， dander and other particulates.

$39.99 for one.

Or，

Save 10% ($8.00) and get two for 71.98.

Save 12% ($14.40) and get three for $105.57.

Save 15% ($23.99) and get four for $135.97.

Free shipping in United States.

• In April 2022 we introduced a new "tackification" filter pad treatment which captures more dust and dander， and also provides a more potent catechin phase.  
• We borrowed this technology from the furnace filter industry. 
• Furnace filters with an application of a tacky coating capture more dust， dander and other particulates.