Product description

The Austin Air “it” Replacement Filter is your go-to solution for fresh, purified air in your personal spaces. Designed specifically for the Austin “it” Personal Air Purifier, this filter combines medical-grade HEPA technology, a large particle pre-filter, and an optional dual-stage VOC Carbon Wrap upgrade. This multistage filtration works to remove allergens, viruses, dust, odors, and even harmful chemicals in your personal space.

Whether you're using the “it” in your office, dorm, car, or next to your bed, replacing the filter regularly keeps your unit running efficiently so you can breathe easy wherever life takes you.

  • Choose a standard prefilter to remove particles easily seen by the naked eye (dust, hair, and pet dander)
  • Upgrade to a dual-stage VOC Carbon Wrap prefilter to also adsorb VOCs, chemicals, gases, and odors
Fits These Austin Air Purifier Models:
  • Austin Air “it” Air Purifier only

Does NOT Fit

  • Austin Air Standard Models
  • Austin Air Junior Models
Top Features of the “it” Replacement Filter
  • Medical-grade HEPA filter captures 99.97% of airborne particles ≥ 0.3 microns
  • Traps 99% of ultra-fine particles ≥ 0.1 microns, including viruses and bacteria
  • Large particle prefilter catches dust, hair, and pet dander
  • Optional dual-stage VOC Carbon Wrap upgrade adsorbs gases, odors, and chemical pollutants
  • Ideal for personal spaces like desktops, nightstands, small offices, and vehicles
  • Keeps your air clean in spaces too small for larger purifiers
Load video: Overview of how to change the Austin Air air filter and pre-filterLoad video: Overview of how to change the Austin Air air filter and pre-filter

Designed for People Who:

  • Want clean, purified air in small or shared spaces
  • Are sensitive to dust, allergens, mold spores, or pollen
  • Need protection from viruses or bacteria in work or travel setting
  • Prefer discreet, portable air filtration for day-to-day life
Filters Designed To Last 5 Years!
Austin Air Systems logo in navy blue with a transparent background
Clinically Proven By Research Hospitals
Austin Air Systems logo in navy blue with a transparent background
Handcrafted in Buffalo, NY
Austin Air Systems logo in navy blue with a transparent background
Replacement filter with 'austin it' branding on a light gray background

Why Choose the Austin Air “it” Replacement Filter?

Unlike generic air purifier filters, this genuine Austin Air filter is engineered specifically for the Austin “it” Personal Air Purifier—bringing the same trusted HEPA technology used in hospitals and research settings into your everyday personal environment.

With the option to upgrade to our dual-stage VOC Carbon Wrap, you gain even more protection from harmful gases, odors, and chemical fumes, all in a unit small enough to fit in your carry-on or cupholder.

Looking for Even More Protection?

If you're looking to scale up your air purification to cover larger rooms or whole apartments, consider upgrading to one of our more robust units:

  • HealthMate Junior – Ideal for bedrooms, nurseries, and small spaces
  • HealthMate Plus Junior – For homes with chemical off-gassing or wildfire smoke
  • Bedroom Machine – Extra HEGA carbon cloth protection for sleep and sensitivity
  • Immunity Machine – Advanced 8-phase protection for immune support

Note: The “it” filter is only compatible with the “it” Personal Air Purifier. For larger spaces, you'll need a Junior or Standard unit.

Shop All Purifiers

FAQs

Please read our FAQs page to find out more.

How do I know which filter size I need?

Check the label on your Austin Air unit — standard units begin with HM4 (like HM400), junior units start with HM2 (like HM200), and the personal "it" units are smaller and labeled accordingly. You can also measure your unit or use our “Help Me Choose” tool.

Are Austin Air filters interchangeable?

Yes — but only within the same size category.

All standard-size filters fit all standard-size purifiers. So you can upgrade your filter (for example, from a HealthMate to a Bedroom Machine filter) without replacing your unit. Junior and “it” models require their own unique filter sizes.

Do I need a new filter when I buy a new Austin Air purifier?

No — every Austin Air purifier comes with a filter already installed and ready to use. You only need to purchase a replacement when it's time for a change, usually every 5 years.

Can I upgrade my current unit with a different filter type?

Absolutely. If you own a standard-size unit, you can switch to any other standard-size filter type — like the Bedroom Machine or HealthMate Plus — at any time. It’s an easy way to customize your purifier based on your current air quality needs.

How long do Austin Air filters last?

5 years under normal use — which makes them one of the longest-lasting filters on the market. In high-pollution or pet-heavy environments, you may choose to replace them sooner.

Do filters include the prefilter?

Yes — all Austin Air replacement filters come with the main filter and integrated prefilter layers. You do not need to purchase the prefilter separately unless you’re just replacing that component.

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