Allergy Machine Junior Filter
5 Year HEPA/Military Carbon Cloth Filter (HEGA) | 360 Degree Air Intake | Clinically Proven | 4-Stage Filtration System
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Allergy Machine Junior Filter
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Shipping Information
If your order is placed by 1 pm EST Monday through Friday, we strive to ship on the same business day. Please note, our offices are open Monday through Thursday from 8 am to 5 pm EST and Friday from 8 am to 2:30 pm EST. Orders placed on the weekend will ship on Monday.
Consistent with the provisions of the FedEx and UPS Service Guide, shipment delays caused by natural disasters such as wildfires are not eligible for any expedited delivery guarantee, nor are the shipping fees eligible for a refund or credit. -
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FAQ’s
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Breathe easier with the Austin Air Allergy Machine Junior Replacement Filter, designed to deliver immediate and long-lasting relief from airborne allergens in bedrooms, nurseries, home offices, and other small spaces. This genuine junior-sized replacement filter features a 4-stage filtration system, including True Medical-Grade HEPA and a Military-Grade HEGA Carbon Cloth, making it one of the most effective filters available for quickly trapping allergy triggers and irritants in minutes.
If you’re struggling with sneezing, congestion, or allergy flare-ups indoors, restore your junior model Austin Air purifier with a new Allergy Junior filter to create a cleaner, healthier environment.
- Choose white prefilter for White and Sandstone units
- Choose black prefilter for Black and Midnight Blue units
Fits These Austin Air Purifier Models:
All Junior-size Austin Air Purifiers, including:
- Austin Air Allergy Machine Junior
- Austin Air HealthMate Junior
- Austin Air HealthMate Plus Junior
All Junior filters are interchangeable and fit all Junior-sized Austin Air units.
Does NOT Fit
- Standard-size Austin Air Purifiers
- Austin Air "it" Air Purifier
Top Features of the Replacement Filter
- 4-stage filtration, designed specifically for airborne allergen removal
- 30 sq. ft. of True Medical Grade HEPA removes 99.97% of particles ≥ 0.3 microns and 99% of particles ≥ 0.1 microns
- HEGA Carbon Cloth adsorbs gases and odors and neutralizes viruses
- Large and Medium Particle Prefilters trap visible dust, pet dander, pollen, and mold spores
- Ideal for smaller spaces like bedrooms, nurseries, and dorm rooms
- Long-lasting performance — 5 years under normal use
Designed for People Who:
- Suffer from seasonal or year-round allergies
- Struggle with pet dander, pollen, dust mites, or mold
- Have asthma or other respiratory sensitivities
- Want an air purifier that works fast in compact spaces
- Need clean, allergy-free air for children, seniors, or anyone with sensitivities
Why Choose the Allergy Machine Junior Replacement Filter?
The Allergy Machine Junior Filter was designed with one goal: remove allergens from the air immediately. With a smaller footprint and fast-acting technology, it’s the perfect filter for tight spaces where allergy relief can’t wait. The combination of HEPA and HEGA filtration ensures that you're not just removing dust and dander, but also targeting airborne viruses, gases, and ultrafine particles that many filters miss.
It’s backed by Austin Air’s proven clinical performance, trusted in hospitals, research trials, and homes for more than 30 years.
Looking for Even More Protection?
Need a filter that goes beyond allergens? Explore these Junior filter upgrades:
- HealthMate Plus Junior Filter – Enhanced chemical and VOC protection for off-gassing and smoke
All junior filters fit all junior purifiers — swap anytime based on your needs.
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.
Customers are saying
Bedroom Machine
The Austin Air Bedroom Machine is an advanced air purifier for nighttime respiratory support, chemical sensitivities, and overall health. Clinically proven and backed by extensive research from Johns Hopkins University Medical School, this unit features five stages of medical-grade and military-grade filtration, including our unique HEGA (High Efficiency Gas Adsorption) carbon cloth, to remove ultrafine particles, chemicals, gases, VOCs, and airborne viruses—so you can sleep in truly clean air.
Recommended by leading doctors for those with chronic respiratory or sleep issues, the Bedroom Machine is your best defense against the air pollution that often goes unnoticed but impacts your health the most—while you sleep.
- Recommended by sleep experts and allergists
- Tested and trusted by major medical institutions