Products · Air purifiers · Austin Air
Austin Air HealthMate (B400)
Reader ratings
A steel purifier with a very large carbon and HEPA filter rated for five years, listed by CARB as mechanical. Austin Air publishes no CADR, airflow or noise figure, so we cannot check its room rating. About $845.
Best for A buyer who wants a filter-only machine with a big carbon bed and a five-year filter, and who values a US-built steel case over quiet or a room rating they can check.
- Our quality rating
- Fair (3 of 5)
- Price range
- Premium
- Verified marks
- Listed by CARB as a mechanical air cleaner (HealthMate HEPA Plus, HM400)
- Size
- Steel unit, 14.5 x 14.5 x 23 in, 47 lb; no CADR is published, and Austin Air’s Amazon title says it covers up to 1,500 sq ft
- Made in
- Built in Buffalo, New York (Austin Air)
approx. $845
See it on Austin Air’s site →We are not affiliated with Austin Air. This link goes to the maker’s own page, with no tracking code. How we're funded.
Reader ratings & reviews
– out of 5
Loading ratings…
Rating breakdown
- 5 stars 0
- 4 stars 0
- 3 stars 0
- 2 stars 0
- 1 star 0
Have this product? Please rate it.
Check your email
We sent a sign-in link to . Click it and you’ll come straight back here, signed in. It expires in 15 minutes; check your spam folder if it doesn’t show up. Thank you for helping the community!
Your review
Reviews are personal experiences, not research, and they never change our quality ratings. Every review is read by our team before it appears.
How we evaluated it
Why we chose it What put it on our list
- CARB lists Austin Air’s HealthMate HEPA Plus, model HM400, as Mechanical (notified 2010-10-14, order G-10-105). Austin Air’s current model is the B400. We matched the two by the numbering and by a retailer listing that pairs HM400 with Model B400, not by a statement from Austin Air.
- The filter is large: Austin Air says it holds 60 sq ft of HEPA media and up to 15 lb of activated carbon and mineral media (over 780 cubic inches of the carbon blend).
- Austin Air says the machine makes no ozone and uses no ionization, and that its HEPA material is rated at 99.97% of 0.3 µm and 99% of 0.1 µm.
- Parts and warranty are clear: a replacement filter is $395, built to last 5 years under normal home use (about $79 a year); a pre-filter is $34.50. There is a 5-year machine warranty, a 5-year pro-rated filter warranty and a 30-day trial.
Trade-offs What to weigh before you buy
- Neither the product page nor the owner’s manual gives a CADR, an airflow or a noise figure; the manual only says there are three speeds. Austin Air’s Amazon title says “covers up to 1,500 sq ft”, with no test behind it. AHAM’s directory has no Austin Air entry. We cannot apply the two-thirds room rule or judge the noise.
- The HEPA rating is for the “material”, from an unnamed source, not the assembled filter. CARB’s listing dates from 2010.
- It costs about $845, weighs 47 lb and has a steel case.
- Austin Air’s page cites a trial of HEPA air cleaners in children with asthma. The trial’s abstract does not name this brand. It found fewer unscheduled visits but no change in symptoms; see our guide.
What to know Details worth knowing first
The HealthMate is an old design and a plain one: a steel tower that pulls air in from all sides through two pre-filters, a deep bed of carbon and mineral media and a HEPA layer. It is controlled by a three-speed switch, and Austin Air says it has no ionizer. CARB’s list files the model as mechanical, which is what our air purifier guide looks for.
Its argument is the filter. Austin Air says it holds up to 15 lb of carbon blend and lasts five years, which is a very different offer from a thin carbon layer that is changed each year. If gases and odors matter to you, that is the point of this machine. See indoor pollutants for what particle filters do and do not remove.
Its weakness is that Austin Air publishes no CADR, airflow or noise figure, so we cannot check how big a room it suits or how loud it is. Its asthma pages point to a trial of HEPA cleaners that we cover in do air purifiers improve health: fewer unscheduled visits, but no clear change in symptoms. Ask Austin Air for a CADR before you buy.
Quality & testing How it measures up against our checklist
- Tested by
- CARB (listing)
| What we checked | What we found |
|---|---|
| True HEPA Maker’s claim | Austin Air says its “Certified HEPA material” is rated to capture 99.97% of 0.3 µm particles and 99% of 0.1 µm particles. This describes the material, no lab or report is named. |
| No ozone (CARB listing) Verified | CARB’s list has Austin Air HealthMate HEPA Plus, model HM400, as type Mechanical (order G-10-105, 2010). We matched it to the B400 by model number; a retailer listing (Red Vacuums) pairs “HM400 Healthmate” with Model B400. Austin Air also says there is no ozone and no ionization. |
| Right size (CADR) Not verified | No CADR, airflow or room rating on Austin Air’s page or in its owner’s manual. Its Amazon title says it covers up to 1,500 sq ft, with no test named. No Austin Air entry in AHAM’s directory. |
| Carbon for gases Maker’s claim | Austin Air says the filter has over 780 cubic inches of activated carbon and mineral media, up to 15 lb. |
| Running cost and noise Not verified | Filter $395, rated 5 years; pre-filter $34.50. Noise is not stated, and the manual lists three speeds without decibels. |
What the labels mean
- Verified We opened an independent record that confirms it: a certifier’s listing, a regulator’s list or a lab report. It is linked under Sources.
- Maker’s claim The maker says so on its own page or label. We read it but found no independent record.
- Not verified We looked and could not confirm it, or the maker does not say. Treat it as unknown.
Sources Where our facts come from
- Austin Air HealthMate product page: price, filter, warranty and claims. Maker’s page. Open ↗
- Austin Air replacement filters: prices. Maker’s page. Open ↗
- Austin Air owner’s manual (2025). Maker’s page. Safety, speeds and care. It has no airflow, noise or CADR figures. Open ↗
- CARB list of certified air cleaning devices (search for Austin Air). Certifier or regulator listing. HealthMate HEPA Plus (HM400) is type Mechanical, order G-10-105. The list is one long table with no link for a single model. Open ↗
- Red Vacuums listing: Austin Air HM400 Healthmate, Model B400. Independent source. A retailer page, used only to pair the HM400 name with Model B400. It is not a statement from Austin Air. Open ↗
- Lanphear et al. 2011, Pediatrics: HEPA air cleaners and asthma visits (PMID 21149427). Independent source. The trial Austin Air’s page describes. The abstract says HEPA air cleaners and does not name a brand. Open ↗
Where to buy Other stores and the prices we saw
- Amazon approx. $845. Sold and shipped by Austin Air Systems.
Prices as we saw them on October 22, 2026. They change often. These links carry no tracking code and earn us nothing.
Alternatives Other options to compare
- IQAir HealthPro Plus XE About $1,200, with a separate carbon cartridge, published filter prices and noise by speed, and also no CADR.
- Oransi Mod+ About $699, with an AHAM smoke CADR of 363 and a HEPA and carbon filter in one, replaced yearly.
- Levoit Eleva 500X About $260, with an AHAM-listed smoke CADR of 301. The whole machine weighs 12.9 lb, so its carbon filter is far smaller, and its HEPA filter lasts up to 2 years. It is new: Amazon lists it as first available on 2026-10-18.