Product description

When the air inside your home is loaded with chemicals, wildfire smoke, and strong odors, the Austin Air HealthMate Plus Junior Replacement Filter delivers serious protection in a small but mighty package. Designed for all junior-size Austin Air Purifiers, this filter combines activated carbon, zeolite, potassium iodide impregnated carbon, and medical-grade HEPA to tackle even the most stubborn airborne pollutants.

If you experience chemical sensitivities, especially to fumes, formaldehyde, wildfire smoke, or everyday household toxins, this upgraded junior filter offers targeted relief and high-performance purification in small spaces such as offices, nurseries, or small apartments.

  • Choose white prefilter for White or Sandstone units
  • Choose black prefilter for Black or Midnight Blue units
Fits These Austin Air Purifier Models:

All Austin Air Junior Units, including:

  • HealthMate Junior
  • HealthMate Plus Junior
  • Allergy Machine Junior

All junior replacement filters are compatible with all junior-sized Austin Air units.

Does NOT Fit

  • Standard (Full-Size) Austin Air Purifiers
  • Austin Air Personal Air Purifiers (such as the “it” model)
Top Features of the Replacement Filter
  • Advanced 4-stage filtration for chemicals, gases, smoke & particles
  • Potassium iodide-impregnated carbon targets formaldehyde, ammonia, and VOCs
  • 30 sq. ft. of medical-grade HEPA captures 99.97% of all particles ≥ 0.3 microns
  • Over 270 cubic inches of our blend of potassium iodide impregnated carbon and zeolite to neutralize odors and chemical vapors
  • Dual particle prefilters trap visible dust, hair, and dander
  • Long-lasting use — 5 years of clean air performance
  • Easy to install 
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:

  • Are sensitive to chemical fumes, cleaning agents, or off-gassing furniture
  • Live near industrial zones, heavily polluted cities, or wildfire-prone areas
  • Experience symptoms triggered by formaldehyde, paint fumes, or construction materials
  • Need clean air in children’s rooms, apartments, or offices
  • Want to reduce exposure to VOC-emitting products like carpets, flooring, or pressed wood
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
Pile of activated carbon with Austin Air Systems branding and product details.

Why Choose the HealthMate Plus Junior Replacement Filter?

When basic filters aren’t enough, the HealthMate Plus Junior provides elevated protection against the most dangerous and invisible pollutants in your home:chemicals. From wildfire smoke to off-gassing from new furniture, this enhanced filter offers robust chemical adsorption and proven particulate removal, all in a compact size for junior units.


You’ll get the same trusted performance as our full-size HealthMate Plus, tailored for smaller rooms — and backed by the quality and craftsmanship of Austin Air’s medical-grade air purification.

Looking for Even More Protection?

Buy a larger standard unit for greater air protection, covering more square feet!

Shop Larger Air 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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