Austin Air Allergy Machine® Replacement Filter (FR405)

All standard size units are interchangeable with all standard size filters. So, if you purchased a standard size HealthMate® and would like to upgrade to the Allergy Machine®, simply purchase a replacement Allergy Machine® filter.

Filter Specifications 

• STAGE 1 – Large Particle Pre-filter. Removes particles easily seen by the naked eye (e.g. dust, hair and pet dander)
• STAGE 2 – Medium Particle Pre-filter. Removes small to medium size particles (e.g. molds, spores and pollen) Color: gray, blue or green
• STAGE 3 – 60 sq. ft. of True Medical Grade HEPA. Removes 99.97% of all particles larger than 0.3 microns and 95% of all particles larger than 0.1 microns.
• STAGE 4 – Military Grade HEGA Carbon Cloth. HEGA (High Efficiency Gas Arrestance), providing an extremely large surface area for adsorption of chemicals, gases, viruses and bacteria.

You can check the size of your existing filter by looking for a label on the underside. Model HM400 indicates standard size filter.

Filter Replacement Instructions

Our Commitment To You:
As an authorized retailer of Austin Air, we are able to offer you the best warranty in the industry. You can take pleasure in knowing you’ve made a sound investment with your Austin Air cleaner.

5-Year Pro-rated Filter Warranty
Austin Air offers a 5-year pro-rated filter warranty, by far the most comprehensive in the industry. No more costly filter replacements every few months or years. Austin Air filters are designed to last for an unprecedented 5-years, under normal residential use.

Please See our Page on Shipping and Returns and scroll down for Austin Air Products Return Policy.  

We work very hard to ensure that we offer the absolute best prices online.  If you find another online store that offers a lower price than us within six months of your purchase date please let us know and we will refund your original payment for the difference.  We want you to feel confident that you are getting the absolute best price for the product you are ordering.  If you find that our own website has a lower price for the same item you have ordered within six months of your purchase date will refund the difference as well.

To request your partial refund simply e-mail us a link to the same product on our website, or on our competitors’ website within six months from the date of your order and we will process the credit accordingly.

Our 100% Price Guarantee has some limitations:

• You must purchase the item from our website before requesting your Price Match Guarantee
• Promotions such as rebates and buy one, get one free offers are not eligible
• The item must be in stock on the competitors’ website
• The competitor must be an online store, they may not have a retail location
• The website cannot be a manufacturer, discounter or auction website (ie; Amazon, eBay, overstock, etc.)
• The competitor must be an Authorized Retailer of the product in question
• The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax
• Brands excluded from Price Guarantee: AirDoctor

For Questions about Shipping and Returns, please see our Shipping and Returns policy page.