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This 2-pack premium HEPA filter set is designed to be compatible with Holmes® aer1 Total Air Filters (HAPF30AT-U4R) and includes an additional 4 charcoal booster pre-filters. These filters effectively trap 99.97% of airborne allergens and contaminants, while the carbon booster filters help neutralize unwanted household odors—noticeably improving air quality. Compatible with AER1-ready air purifiers, this set replaces A, D, and K filters and fits a variety of Bionaire units including BAP260, BAP815, BAP825, BAP9200, BAP9700, and BAP520, as well as Holmes units like CAP531-U, CAP529-U, HAP240, HAP242, HAP412, HAP422, HAP424, HAP706, HAP716, HAP9240, HAP9242, HAP9412, HAP9414, HAP9422, and HAP9424. Each filter measures 1.2 x 10 x 4.6 inches and is easy to install—simply replace the used filter to maintain optimal performance. For best results, replace every 6 months. This is not a Holmes® OEM product; Holmes® is a registered trademark of its respective owner, used here solely to indicate compatibility. Customer satisfaction guaranteed—our quality meets or exceeds national brands.
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This 2-pack premium HEPA filter set is designed to be compatible with Holmes® aer1 Total Air Filters (HAPF30AT-U4R) and includes an additional 4 charcoal booster pre-filters. These filters effectively trap 99.97% of airborne allergens and contaminants, while the carbon booster filters help neutralize unwanted household odors—noticeably improving air quality. Compatible with AER1-ready air purifiers, this set replaces A, D, and K filters and fits a variety of Bionaire units including BAP260, BAP815, BAP825, BAP9200, BAP9700, and BAP520, as well as Holmes units like CAP531-U, CAP529-U, HAP240, HAP242, HAP412, HAP422, HAP424, HAP706, HAP716, HAP9240, HAP9242, HAP9412, HAP9414, HAP9422, and HAP9424. Each filter measures 1.2 x 10 x 4.6 inches and is easy to install—simply replace the used filter to maintain optimal performance. For best results, replace every 6 months. This is not a Holmes® OEM product; Holmes® is a registered trademark of its respective owner, used here solely to indicate compatibility. Customer satisfaction guaranteed—our quality meets or exceeds national brands.

Nispira high quality, effective HEPA filter helps to purify the air by capturing particulates. Particles 0.3 microns and larger that pass through the filter are captured to help maximize comfort and freshness. Infused activated carbon removes any unfavorable household odor such as cooking, smoke, pet smell, VOC chemical etc. This filter is compatible with the following Holmes air filter units: HAP242-NUC, HAPF300AH-U4R, HAPF30AT-U4R, CAP531-U, CAP529-U, HAP240, HAP242, HAP412, HAP422, HAP424, HAP706, HAP716, HAP9240, HAP9242, HAP9412, HAP9414, HAP9422, HAP9424 and HAP9425B Mini Tower. It can also be used with the following Bionaire units: BAP260, BAP815, BAP825, BAP9200, BAP9700, BAP520 and BIONAIRE Mini Tower. It measures 1.2 x 10 x 4.6 inches and comes in a pack of 2 filters. We recommend replacing your air purifier filters every 6 months to maintain effectiveness and efficiency. This is not a Holmes® OEM product. Holmes® is a trademark™ or registered® trademark of its respective holder. Use of it does not imply any affiliation with or endorsement by the holder. The trademark holder is not affiliated with Nispira and does not endorse this product. Any use of the name Holmes® or model Aer1® designation for this product is made solely for purposes of demonstrating compatibility.

The Nispira replacement filter (Part # 970341-01) is engineered for high-compatibility with a wide range of Dyson air purifiers including HP04, TP04, HP06/07/09/10, TP4A, TP7A, TP06/07/09/10, PH01-04 models. It features a 2-in-1 design combining True HEPA media with activated carbon filtration to capture fine airborne particles and help reduce household odors and harmful gases. Installation is quick and straightforward, and by replacing your filter at recommended intervals you help ensure your purifier continues to deliver peak performance. This listing contains one (1) replacement filter unit.

Replacement HEPA filter engineered for the following Dyson purifiers: HP09, TP09, HP07, TP07, PH01, PH02, HP06, TP06, HP04, TP04, DP04. We recommend replacing your filter every 12 months. Over time, filters can get clogged with pollutants, reducing air flow. Using Dyson Genuine replacement filters ensures a sealed filtration system, HEPA standard and proper functioning of the machine.
| Pros for Nispira - HEPA Filter Charcoal Booster Pre Filter for Holmes AER1 Total Air Filter, HAPF30AT for Purifier HAP242-NUC - Blue/ White/ Black | |||
|---|---|---|---|
| There were no pros for this product— | There were no pros for this product— | There were no pros for this product— | Air Quality, Filter Life, Ease of use, Overall Performance, Fit |
| Cons for Nispira - HEPA Filter Charcoal Booster Pre Filter for Holmes AER1 Total Air Filter, HAPF30AT for Purifier HAP242-NUC - Blue/ White/ Black | |||
| There were no cons for this product— | There were no cons for this product— | There were no cons for this product— | Price, Smell |
