A: Hi there, M! Thank you for choosing Bionaire®️. Yes this filter does have fiberglass. If you need further assistance regarding this matter, you may reach us by visiting the Contact Us page of our website. Have a wonderful day!

A: Yes, the Bionaire 2pk AER1 Allergen Air Purifier Filters do contain fiberglass. Let us know if you have any other questions! Bionaire Support Team

A: Hi CWin! Thank you for choosing Holmes®️. Yes, the air purifier model the AER1 Allergen Remover filter can be used for air purifier model HAP9413B. We hope this information helps. Thank you and have a good one!

A: Hello CWin, thank you for your question! Yes, the Bionaire 2pk Aer1 Allergen Air Purifier Filters are compatible with any Holmes or Bionaire Aer1 air purifier, including the Holmes Air Purifier HAP 9413B. Let us know if you have any more questions! Bionaire Support Team

A: Hello, Yes, the Bionaire 2pk AER1 Allergen Air Purifier Filters are compatible with the Holmes model HAP 9425. You can also contact our customer support team at +1 908-864-4851 Ext: 6633 for assistance. Bionaire Support Team

A: Hello Lee, Thanks for reaching out. Bionaire air filters are compatible with all Bionaire Air Purifiers and Holmes Air Purifiers. Bionaire Support Team

A: Hi Lj, thank you for your question! Yes, the Bionaire AER1 Allergen Air Purifier Filters are compatible with your Holmes Air Purifier model HAP9423-UHA. Let us know if you have any more questions! Bionaire Support Team

A: Hi Jeanne, thank you for your question! The Bionaire AER1 Allergen Air Filters are designed with a combination of materials, including fiberglass, to capture allergens and pollutants effectively. The mention of "pure cotton" refers to the cotton used in the carbon layer, which helps capture odors. We understand how this might be confusing, and we appreciate your attention to detail. Let us know if you have any other questions! Bionaire Support Team

A: Thank you for your question! Yes, the Bionaire 2pk Aer1 Allergen Air Purifier Filters are compatible with any Holmes or Bionaire Aer1 air purifier, including the Holmes Air Purifier HAP 9435. Let us know if you have any more questions! Bionaire Support Team

A: Thank you for your question! The Bionaire Aer1 Allergen-Remover True HEPA Air Filter is not considered a Type A filter; it is actually a Type D filter. It is compatible with all Bionaire Aer1 air purifiers and helps remove up to 99.97% of allergens like pollen, dust, mold, pet dander, smoke, and more, filtering particles as small as 0.3 microns. Let us know if you need more information! Bionaire Support Team

A: Hello Barbara, Thank you for your question! Yes, the Bionaire 2pk Aer1 Allergen Air Purifier Filters are compatible with any Holmes or Bionaire Aer1 air purifier, including the Holmes Air Purifier HAP 9423. Let us know if you have any more questions! Bionaire Support Team

A: Hi! Thank you for choosing Holmes®️. The Blue Holmes aer1 HEPA-Type Total Air Filter (model HAPF30AT) tracks and locks dust and particles for a cleaner home. It has advanced dust-eliminating power to help purify the air by capturing 99% allergens and pollutants such as pollen, dust, mold, pet dander, and smoke as small as 2 microns. We hope this information helps. Thank you and have a good one!