Have questions? Talk to our experts at 1.800.522.1448

Replacement Filters

Extend the life of your unit – maintain healthy air quality – reduce energy costs. These are all sound reasons to replace your filters. Whether it’s changing your Air Purifier filter, Furnace filter, Humidifier filter or your Vacuum Cleaner filter, replacement allergy filters are particularly important if you suffer from asthma or allergies. Dirty filters can worsen air quality and exacerbate symptoms. Replacing your filter is an easy, inexpensive way to save money, extend the life of your unit, and reduce asthma and allergy symptoms – all giving you peace of mind when purchasing your replacement filters online at National Allergy Supply. Browse replacement filters below.

Items 1-12 of 143

Page
per page
Set Descending Direction

Items 1-12 of 143

Page
per page
Set Descending Direction