Nispira HAPF300AP AER1 Performance Plus Filter for Holmes Air Purifier HAP242-NUC HAPF300AP-U4 True HEPA Item Package Quantity:2 Compared to original part MA#25R

Compared to original part MA#25R

Suggested to clean every 2-4 weeks and replaced every 6 months

Nispira 3-in-1 True HEPA Air Intake Filter Replacement Compatible with Silentnight Air Purifier 42269

Designed for compatibility with Vornado AQS25

smoke and harmful chemical VOCs

Nispira HAPF300AP AER1 Performance Plus Filter for Holmes Air Purifier HAP242-NUC HAPF300AP-U4 True HEPA Item Package Quantity:2 Compared to original part MA#25RPremium HEPA filters compatible with Holmes aer1 total air filter HAPF300AP U4. Compatible with AER1 ready air purifiers. HEPA FILTER: Remove up to 99. 97 percent of airborne particles as small as 0. 3 microns. Compatible with Holmes Units: CAP531 U, CAP529 U, HAP240, HAP242, HAP412, HAP422, HAP424, HAP706, HAP716, HAP9240, HAP9242, HAP9412, HAP9414, HAP9422, HAP9424 Compatible with Bionaire Units: BAP260, BAP815, BAP825, BAP9200, BAP9700, BAP520.