Nispira HAPF300AP AER1 Performance Plus Filter for Holmes HAPF30AT Air Purifier HAP242-NUC HAPF300AP-U4 True HEPA. 2 Packs

2 Premium HEPA filters compatible with Holmes HAPF300AP Performance Plus. Compatible with AER1 ready air purifiers | 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. | Filter dimension: 1.2 x 10 x 4.6 inches. 2 HEPA filter included. | Easy to install. Just remove the used filter from the air purifier and put in the new one. Suggested to replace the filters every 6 months to optimize the efficiency.