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Austin Air HealthMate HM 400 HEPA Air Purifier Review

Austin Air HealthMate HM 400 is an air purifier with a true HEPA filter. True HEPA filter can trap up to 99.97% of particles in the air as small as 0.3 microns, and it meets all HEPA standards.

Austin Air is known for their reliable and affordable air purifiers. They are an excellent economical choice and require minimal maintenance with low filter replacement costs.

The Austin Air HealthMate and HealthMate Jr. are most known for Austin Air brand.

Those air cleaners remove general airborne allergens, household odor, and gas. Austin Air equips each air purifier with a medical grade HEPA filter for allergen removal.

Austin Air Healthmate HM 400 Purifier
Austin Air Healthmate HM 400 Purifier
The HealthMate filter should last for about 5 years. This means you won’t need to replace the filter too often even if you use it 24/7.

It is surrounded by a large amount of high-grade carbon for odor, chemical and gas control. Designed for the performance they are a great value for quality air purification.

Austin Air manufactures their products in the USA, and their manufacturing factory is one of the largest in the world. They offer 5-year mechanical and filter warranty. But the warranty is void in the smoking house.

The Healthmate series air purifiers are perfect for dealing with your everyday air quality concerns.


Austin Air HealthMate Review

Don’t be fooled by Austin Air HealthMate Air Purifier HM400 small size as this air purifier is specially intended for larger rooms. It is available in four colors. Silver, sandstone, black and white color.

The HealthMate Filter should last for about five years. This means you won’t need to replace the filter too often even if you use it 24/7.

I purchased my Sandstone HealthMate 400 about ten years ago, and it has been running non-stop since then, never any problems whatsoever with unit performance.

My HM400 is still going strong after a decade of continuous 24/7 use. It’s a real trooper, indeed a product of top-notch quality and durability!


It can be let to work non-stop. In fact, Air Austin (manufacturer) recommends their customers to leave their air cleaner on all the time to get cleaner and fresher air. I don’t know how will that affect on the electric bill.


Austin Air HealthMate Filter

One of the key highlights of Austin Air HM400 HealthMate  HEPA Air Cleaner is the medical-grade filter that comes with it.

It is a medical-grade true HEPA model which has been specifically designed to remove almost all of the pollutants found in the air.

The filter is made out of carbon and zeolite and placed strategically within the device. It can completely remove any fumes or odors from the air.

There is even a pre-filter that is also built into HealthMate 400. It will extend the life of the primary HEPA filter to last even longer.

Austin Air HealthMate Replacement Filter
Austin Air HealthMate Replacement Filter
Austin Air HealthMate Replacement Filter can be used on HealthMate HM400, HealthMate Plus HM450, Pet Machine (HM410), Allergy Machine HM405 and the Bedroom Machine (HM402) by Austin Air.

Austin HM400 Construction

There are many various air purifier models that come with a label and printed signs claiming they are built to last. Truth is that they are not able to live up to that empty promise.

Many are made out of plastic and will emit gasses making them very problematic for people with chemical sensitivity.

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Consumers will never have to worry about Austin Air HealthMate purifier as it was truly designed and built to outlast the competition.

It is made out of solid steel, which means that you will never have to worry about dealing with any off-gas chemicals.


HealthMate 400 Energy-Efficiency

A major highlight of this particular model is the overall energy-efficiency that comes along with it. The model is already stylish and visually appealing.

It comes with a complete air intake system that maximizes air flow and has a durable PSC motor specifically designed to last for many years.

You control the efficiency of the purifier’s operation by using the three-speed switch built into the model.




Austin Air HealthMate Standard HM400 usually comes with a five-year guarantee. It is programmed to cover a much wider area than many comparable models released by competitors over the years.

Studies have proven that it can adequately cover over 700 square feet if you go with the superior design.


Progressive Filtering System

The Austin Air HM400 HEPA Air Purifier addresses the complete spectrum of air cleaning, removing sub-micron particles, noxious gasses and chemicals.

Austin Air’s 360-degree intake system draws air into all sides of the HealthMate 400, passing it through a 4-stage filter. The result is more clean air delivered faster and more efficiently.

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)

STAGE 3 – About 15 lbs. of Activated Carbon and Zeolite removes chemicals, gasses and odors

STAGE 4 – 60 sq.ft.of Certified HEPA removes 99.97% of all particles larger than 0.3 microns


We have made your life easier. Find perfect air purifier per your needs by comparing price and attributes.

The first stage is an outer pre-filter which traps large particles you can easily see such as dust, hair, lint, and pet dander.

The pre-filter can be easily vacuumed clean from the outside of the unit, and prolongs the life of the primary filter.


Austin Air HealthMate HM 400 Air Purifier-4-stage-filtration


The primary filter combines three more filtration stages and consists of medium particle pre-filter, carbon blend, and true HEPA.

Medium-particle pre-filter traps additional particles such as mold spores and pollen. A 15 lb bed of activated granular carbon/zeolite helps absorb commonly found household odors, gasses, and chemicals from the air.

The final (fourth) filter stage is a substantial 60 sq ft of certified Medical-grade True HEPA filter media which trap 99.97% of the smallest of microscopic particles as small as 0.3 microns in size. Those are particles you can’t even see, including bacteria and viruses.

I purchased this purifier about a year and a half ago and until recently it worked fairly well. I question its effectiveness because even running it 24/7 there has always been a lot of dust in the room.Buyer

As a result, the Austin Air HealthMate HM 400 delivers more clean air faster and more efficiently than any other air cleaner on the market.


Ideal for Allergy and Asthma Sufferers

The Austin Air Healthmate Air Purifier uses Austin Air’s signature 360-degree progressive filtering system to remove the most symptom-aggravating allergens, odors, and chemicals from your home.

With steady use, you may see a reduction in your allergy, asthma, and multiple chemical sensitivity (MCS) symptoms or even eliminate them all together.

Last update was on: 07/04/2024 14:53

Healthmate HM-400 HEPA Air Filter Purifier - Sandstone

Healthmate HM-400 HEPA Air Filter Purifier - Sandstone
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in stock
Last update was on: 07/04/2024 14:53

Every minute, the system pulls in room air from all sides of the air cleaner. Air passes through a 4-stage HEPA/carbon combination filter and is blown back out into your room using the Clean Air Pocket vent.

This extensive filtration system cleans your air faster and more efficiently than conventional air purifiers, which means quicker relief from your symptoms.

The Health Mate 400 can operate at three speeds, and on the highest speed it can purify up to 1500 sq ft. On the low setting, it will run so quietly that you will barely hear it.

If you need to clean the air quickly, then put it in highest speed setting to quickly feel the difference. It will be a little bit noisy on the high-speed setting, but that is caused by air rushing through it.

The another thing I’ll add to this is how well it cleans the air for a good-sized room. Our great room is where we spend most of our time, and consists of a living room, dining room, and kitchen. This unit does a fantastic job of improving the air quality of the entire space...


If VOCs is your primary concern, or you or someone in the family has asthma or pulmonary disease, the Healthmate is an excellent choice for contaminant removal.

Specially gaseous, VOC contaminants found in paints and cleaning supplies.

The smoking will probably cause the filter to degrade more rapidly. Thus causing the blower to work harder and reducing the lifespan of the motor. In that case, it is best to change the filter more ocassinaly.

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The IQAir New Edition HealthPro Plus features HyperHEPA filtration technology for superior airborne particle removal, tested and certified by an ...
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Area Coverage (sqft)


Noise Level Highest Speed (dB)


Noise Level Lowest Speed (dB)


Airflow at Highest Speed (CFM)


Number of Fan Speeds




UV Bulb


HEPA Filter




Energy Star Verification


Filter Monitor


Timer & Scheduler


Remote Control


Amount of Air Moved (CFM)



HyperHEPA filter

Carbon Filter


Dimensions (inches)

16" L X 15" W x 28" H

Weight (lbs)


Filters To Change


Other Options

Optinal V-5 Cell gas and odor control filter, Patented 3D UltraSeal


$899 – $999

The motor is quiet and shouldnt produce any noise that would disturb piece or your sleep if you use it in the bedroom on normal speed. It has wheels so you can easily push where it is needed.

If you need air purifier mostly because you want to get rid of smoke caused by smoking habits of a family member, then I recommend Germguardian AC4825 or maybe Winix WAC9500.

They are intended for medium-sized to small rooms but will work great in reducing smoke.


Austin Air Healthmate HM400 is ideal for someone who:

  • Want a great value air purifier
  • Wants a HEPA air purifier that also has carbon
  • Needs air purifier that is reliable and will last for years
  • Wants minimal maintenance and low filter replacement costs


Covers Entire House

Austin HM 400 HealthMate is powerful enough on the high setting to purify an entire house. It can clean the air in a space measuring 1500 sq ft.

At only 14.5 x 14.5 inches square, and 23 inches tall, it doesn’t require a lot of room. To achieve its high-quality air filtration, the Healthmate has a powerful fan that can move up to 400 cubic feet of air per minute.

On high-speed, there may be a noticeable air current from the machine in your small space.

Austin Air Purifiers Differences Between Models

Austin Air Healthmate Air Purifiers

Austin Air Healthmate air purifiers are very effective at removing small particles from your indoor air.

Care should be taken to ensure that the air intake and exhaust vents are not obstructed by objects such as towels or clothing.

As with all electrical appliances, if you use the air purifier in areas where exposure to water is possible, you should exercise caution.

Plug this unit into a GFI circuit for safety. Additionally, protect the air purifier from water splashes, which can damage interior components and the control panel.

  • Overview
  • Description
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  • User Rating
  • Review
  • Specification
  • Area Coverage (sqft)
  • Noise Level Highest Speed (dB)
  • Noise Level Lowest Speed (dB)
  • Airflow at Highest Speed (CFM)
  • Number of Fan Speeds
  • Ionizer
  • UV Bulb
  • HEPA Filter
  • Filter Reset
  • Pre-Filter
  • Energy Star Verification
  • CARB Certified
  • Power Consumption (Watts)
  • Filter Monitor
  • Standby Mode
  • Auto Mode
  • Air Quality Sensor
  • Timer & Scheduler
  • Remote Control
  • Amount of Air Moved (CFM)
  • Hepa-filter-type
  • Carbon Filter
  • Dimensions (inches)
  • Weight (lbs)
  • Filters To Change
  • Recommended For
  • Price
  • CDR: Tobacco Smoke
  • CDR: Dust
  • CDR: Pollen
  • Other Options


Austin Air Healthmate HM 400 FAQ

What does normal residential use mean regarding filter life?

Normal residential use refers to the basic household use of the air purifier. Austin Air purifier filters are designed to last five years when utilized in a residential setting.

In commercial or industrial environments where there might be a higher level of airborne pollutants, filter life may be reduced.

Does this unit emit ozone?

No, Austin Air HealthMate HM 400 purifier does not emit ozone during operation.

How often do you need to replace the filter?

Austin Air purifier filters typically last five years under normal residential use.

Is it necessary to change the pre-filter and how will I know when to change the filters?

Typically you need to change the filter every five years under normal residential use. If you run the unit 24 hours a day, then change the filter every 2-3 years.

If you run the unit 8 hours a day, then it should be changed every 4-5 years. It’s not necessary to change the pre-filter until you modify the filter itself.

How much does it cost to run one of these yearly for a residential home?

The Austin Healthmate 400 uses between 56 and 115 watts of electricity, depending on the fan speed. If it runs for 24 hours a day on low-speed, it will use 490 KWH of electricity in a year which equates to $59 per year at 12 cents per kilowatt-hour.

On high-speed, it would be about twice that. Electricity prices vary, so please check your local costs for comparison. The current price for replacement filters is $214.99 each. This is equivalent to $43 per year for the filters (prices subject to change). This places the Austin Healthmate among the best performing air purifiers regarding total operating costs.



  • Fan Speeds: 3.
  • Fan Rating: Speed 1 – 75 CFM, Speed 2 – 200 CFM, Speed 3 – 400 CFM.
  • Decibel Levels: Speed 1 – 39.8 dB, Speed 2 – 55 dB, Speed 3 – 64.5 dB.
  • Energy Consumption: Speed 1 – 56 Watts, Speed 2 – 83 Watts, Speed 3 – 132 Watts.
  • Power: 120 V / 60 Hz; 1.2 Amps, 135 Watts.

 austin air healthmate hm400 hepa air purifier


The Austin Air Healthmate air purifiers provide a complete air cleaning system including pre-filter, medium filter, generous amounts of carbon for gas filtration, plus true HEPA filtration at a fair price.


Austin Air HealthMate HM 400 PROS

1. The Austin Air Healthmate uses true HEPA filter and provides high filtration of particulates including bacteria, mold, germs, pet dander and dust mite allergens.

Testing results showed an average 86% reduction in particles larger than 0.3 microns in the first air pass.

2. The Austin 400 Air Healthmate purifier provides superb gas, chemical & odor filtration. The standard Healthmate air purifier uses 15 lbs of an anthracite carbon and zeolite blend

3. Long lasting filters. The filter used by the Austin Healthmate air purifiers can last up to 5 years before it needs replacement.

The only maintenance required is replacing the filter every five years and periodically vacuum the large pre-filter from outside the unit.

When running HealthMate 400 constantly 24/7, a more realistic life expectancy for the filters is 2 to 4 years, with the carbon becoming saturated before the HEPA filter. None the less, the filters are protected by a five-year pro-rated guarantee.

4. The Austin Air Healthmate air purifiers have a steel construction with a baked-on powder coat finish. They are a good, safe choice for those irritated by plastic off-gassing.

5. Austin Air Healthmate HM 400 is a great economy by offering high-efficiency air filtration with low maintenance and costs.

Austin Air Healthmate HM 400
Austin Air Healthmate HM 400
Every minute, the system pulls in room air from all sides of the air cleaner. Air passes through a 4-stage HEPA/carbon combination filter and is blown back out into your room using the Clean Air Pocket vent.

Austin Air HealthMate HM 400 CONS

1. Not quietest air purifier. Testing team found the Austin Air Healthmate air purifiers are little noisy on the high and medium speed. Low speed is quiet enough for sleeping depending on your noise sensitivity.

High speed is best suited for quick cleaning or for use when you are not in the room. The medium speed is okay if there is already some background noise. The low-speed is quiet enough to use while sleeping.

2. No filter change indicator. If there is anything Austin Air should change, it would be the addition of some type of filter monitoring device to remove the guesswork out of when buyer should replace the filter.

The only way to tell the carbon needs to be replaced is when one can start to smell it, as once it is saturated it will start to off-gas odors.

3. Replacing the filters is not a 60 second job. In order to really clean the pre-filter it is necessary to remove the bottom plate by removing 4 screws and take it out from the air purifier to give it a thorough cleaning.

Replacing the filters is a bit tricky as the cylindrical filter is heavy and the bottom plate must be perfectly in line with the holes to tightly screw it back together.

4. Austin Air overstates the room coverage of the Healthmate air purifier at up to 1500 sq. ft.  Room coverage is half as much when running on medium speed.


Austin Air Healthmate HM 400 Features

  • Powerful
  • Comes with true HEPA medical filter with 5-year life warranty
  • Three-speed settings
  • 4-stage air cleaning system
  • Removes up to 99.97% of airborne particles larger than 0.3 microns
  • For airborne particles, micro-organisms, chemicals, gasses and odors
  • Recommended coverage: up to 313 sq. ft. (6 air changes/hr)
  • Room air purifier
  • Large particle pre-filter
  • Medium particle pre-filter
  • Activated anthracite carbon/zeolite blend
  • 360° air intake, outflow from top side vent
  • Colors: Sandstone, Black, Off-white, Silver and Midnight Blue
  • Made in the USA


Austin Air HealthMate Review Final Words

The Air Healthmate HM400 air cleaners are good value, providing complete air purification of both allergens and chemicals, gasses, and odors at a fair price.

If you are searching for a no frill, an economical air purifier that is reliable and requires little attention, then an Austin Air Healthmate air purifier is for you.

I’m quite happy with this unit, it is precisely what it was promised to be. It does an excellent job at removing particles and smell from the air, and does it at a pretty good price. No, it isn’t as capable as an iQAir unit, but it is half the cost.

In fact, it is the only unit around its price that actually does an exquisite job filtering.


The Austin Air Healthmate is powerful enough to clean large spaces. It runs quietly and is manufactured in the USA.

The Austin Air Healthmate helps reduce your chronic allergy, asthma, and MCS symptoms, creating a healthier environment for you and your family.

Customers love that it is easy to use with no complicated control panels. Healthmate includes one manual knob control to control your fan speed and turn the unit on and off.

Combination HEPA/carbon filter needs to be replaced only once every five years under typical use to help save you money on costly filter replacements.

If you need a higher level of chemical filtration, consider upgraded Austin Air Healthmate Plus which blends potassium iodide into the carbon filter to remove heavier chemicals such as formaldehyde.

7.7 Total Score

Austin Air HealthMate is an air purifier with a true HEPA filter. True HEPA filter can trap up to 99.97% of particles in air larger than 0.3 microns and it meets all HEPA standards. Dont be fooled by its small size as this air purifier is specially intended for larger rooms and it is available in four colors.

Settings and Options
Coverage Area
Overall Quality
  • Filters dont need to be replaced often
  • Has decent area coverage
  • 4 stage filter
  • 360-degree intake system
  • Comes with wheels
  • Provides great filtration
  • Not cheap
  • Little bit noisy on high-speed
  • No filter change indicator
  • ustin Air overstates the room coverage
User Rating: 3.5 (6 votes)
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