Removes Up to 99% Air Pollutants aer1™ Total Air with Dust Elimination Replacement Filter. Advanced dust eliminating power!*. Delivers 30% better air quality*. Infused with Arm & Hammer® Baking Soda to help reduce household odors. Includes germ–fighting silver technology. Compatible with all aer1 ready™ air purifiers Works with these Holmes® Air Purifiers: HAP2400, HAP242, HAP412, HAP422*, HAP424*, HAP706, HAP716*, HAP9240, HAP9242, HAP9412, HAP9414, HAP9422*, HAP9424* *Denotes product uses 2 filters.