Austin Air Allergy Machine Review In 2022: For Allergenic One

Trap in a highly polluted environment that makes breathing difficult? Highly sensitive to dust, plant pollen, or other seasonal allergens? Regularly suffer from running nose or chronic sneeze? If those are the symptoms you have to deal with due to bad air, Austin Air Allergy Machine HM405 is the perfect solution. It is designed for allergy sufferers to stop regular or seasonal allergens from troubling you, thanks to the one and only HEGA filter. Let's learn more about the High-Efficiency Gas Absorption and the pros and cons of the Austin Air Allergy Machine.
online price (US)**
±765 $$$$$$$/ 7

(annual filter cost ±50)

** MRSP (Manufacturer's Suggested Retail Price)/ RSP (Retail selling price) is accurate at the time of posting.
^ Annual filter cost is calculated based on filter price and 12 hours of usage. Pricing could vary depending on air quality, usage frequency, and speed.
` The indicated online price guides as follows: $ = under $50, $$ = $50-100, $$$ = $101-200, $$$$ = 201-300, $$$$$ = $301-400, $$$$$$ = 401-500, $$$$$$$ = over $500.

Austin Air Allergy Machine Specification

ProductAustin Air Allergy Machine
14.5 x 23 x 14.5 in
(36.8 x 58.4 x 36.8 cm)
Weight33.1 lb (15 kg)
Coverage (up to)1,500 sq. ft. (139 m2)
Airflow speed72 - 400 cfm (122 - 680 m3/h)
Dust free (CADR)
Pollen free (CADR)
Smoke free (CADR)
Humidifying(H) speed
- Lifespan
- Replacement cost ($)
Large Particle Pre-filter
5 years
HEPA filter
- Lifespan
- Replacement cost ($)
60 sq.ft. True Medical Grade HEPA
5 years
Carbon filter
- Lifespan
- Replacement cost ($)
Activated Military Carbon Cloth
5 years
Ionizer/ Technologies
UV-light/ PCO
Other filter
Medium Particle Pre-filter
5 years
All-in-one filter
- Lifespan
- Replacement cost ($)
Austin Air Allergy Machine Filter
5 years
+- 250
Optional/ Addon
Noise level40-65 dB
Power usage level115 W
Timer/ Scheduler
Auto mode
Air qualityAQ indicator
Filter change indicator
More color options
Wi-Fi/ BTBluetooth
Remote control
Child lock
Warranty5 years
Email/ Phone support

Key Features

  • 360° accelerating filtration system
  • 4-stage filtration system
  • [STAGE 1] Large particle Pre-filter
  • [STAGE 2] Medium Particle Pre-filter
  • [STAGE 3] 60 ft. True HEPA filter
  • [STAGE 4] Activated military carbon cloth (HEGA) filter
  • 3 fan speeds
  • Long-lasting filters that could last up to 5 years depending on usage
  • 5 years manufacture defect warranty

Design And Usability

Austin Air Allergy Machine dimension
14.5 x 23 x 14.5 in
(36.8 x 58.4 x 36.8 cm)
Austin Air Allergy Machine weight
33.1 lb (15 kg)

Austin Air Allergy Machine’s boxy exterior has the exact dimensions as every other Austin Air air purifier at 14.5 x 23 x 14.5. Weight is slightly lighter at 33.1 lb, despite the same powdered coated steel housing; you would still need to rely on the 4 casters to move the air purifier around. Usability is a bit of a mixed bag; the front dial knob fan speed is super easy to use. However, the lack of practical features such as an air quality sensor, auto mode, and filter indicator hinders the air purifier’s overall usability. On to the specification, what’s included in the package is a 5 years all-in-one filter lifespan, 360° progressive Intake System, NRTL (Nationally Recognized Testing Laboratory) recognized, CSA (Canadian Standards Association), and CE (Conformité Européenne) approved. As typical Austin Air famous, the 4-stage filtration is 100% mechanical with no ozone byproducts emission and a 5 years warranty covering any manufacturing defects.

Austin Air Allergy Machine Control Panel

Airflow, Coverage, And CADR

Austin Air Allergy Machine coverage
Purifying coverage
1,500 sq. ft. (139 m2)
Austin Air Allergy Machine fanspeed
Powered by the excellent all-around 360° progressive system with a consistent 72-400 cfm airflow delivery rate. Austin Air Allergy Machine has an impressive purifying applicable area covering up to 1,500 sq. ft. of room space. It is ideal for large room sizes such as living hall, bedroom, basement, garage, and even be used as a whole-house air purifier. Compared with other standard Austin Air cleaners, expect equivalent airflow performance and purifying coverage.

Recommended Read

Filters And Performance

Austin Air Allergy Machine 4-stage filtration is excellent for people suffering from asthma and allergies. The first filtration stage consists of an outer mesh filter and inner pre-filter that would trap large particles such as dust, dirt, lint, fiber, and pet hair. Of course, the 2-stage medium filter would capture medium-sized particles. In contrast, the 3-stage HEPA filter would trap even smaller airborne particles at 0.3 microns with a 99.97% efficiency and 99% microscopic particles at 0.1 microns in size. These include mold, pet dander, bacteria, and viruses. Finally, Allergy Machine High-Efficiency Gas Absorption (HEGA) filter would trap odor and gas-based allergens linked to household contaminants from cooking, cigarette, cleaning products, VOCs, CO, and CO2.

Overall, filter quality is excellent with multi-layer of depths. You only have to get used to the infamous filter change that requires turning the air purifier over and unscrewing the bottom panel to replace the old filter. Secure but a tedious task.

Austin Air Allergy machine

Noise And Energy Usage

Austin Air Allergy Machine noise level
Noise level
40-65 dB
Austin Air Allergy Machine power consumption
Power consumption
115 W
Austin Air HealthMate Allergy Machine air purifier 40 to 65 dB noise level is far from subtle. It might not be suitable for night use with the background fan noise whirring in the background. Without sleep mode, the only way to prevent the air purifier from making too much noise is to place it further but still within its purifying range. On another note, 132 W power consumption is slightly high for its segment air purifier. With 23 hours of daily operation, you may see a slight increase in your monthly electrical bill. Still, it is not at an alarming level.
Noise TypeDecibels
Austin Air Allergy Machine40-65 dB
Breathing10 dB
Rustling leaves20 dB
Whispering/ Quiet library30 dB
Light rainfall40-50 dB
Conversation50-60 dB
Vacuum cleaner/ Hair dryer/ Washing machine65-80 dB
City traffic80-90 dB

Pricing And Maintainence Cost

Austin Air Allergy Machine MRSP/ RSP
+- 765
Austin Air Allergy Machine annual filter replacement cost
Annual Filter Cost
+- 50
^ Replacement filters/ estimated cost

Austin Air Allergy Machine estimated 765+ price is at premium territory. The lack of modern features further blows the air purifier's overall value. For the price, you can easily get 2-3 air cleaners for multiple rooms but at the cost of lower air coverage. You are paying 100% for the filtration capabilities, which is absolutely fine for those who don't need all the fancy tech.

Filter replacement is another story as Austin Air Allergy Machine offers one of its segment's lowest annual filter replacement costs. The extra-long filter lifespan largely contributes to the economical running cost that only requires replacing every 2-5 years. You will save tons of money on the filter and only have to deal with the hassle of filter change every couple of years.

The best place to get Austin Air Allergy Machine is Amazon or the official website. You will enjoy the usual perks such as bundled discount, free shipping, 30 days return policy if you are not happy with the purchase. We did not find Austin Air in our local retailers, give them a buzz if you need to locate one for physical examination.

Austin Air Allergy Machine VS The Challengers

Austin Air HealthMate HM400

At a much lower cost, the standard set offers decent enough filtration strength against common allergens.
Austin Air bedroom machine

Austin Air Bedroom Machine

The ultimate version with 5-stage filtration, including 15 lbs. Activated Carbon and Zeolite and HEGA filter. It's also the most expensive unit in the Austin Air lineup.


  • An activated military grade carbon HEGA filter is excellent for people who are sensitive to allergens.
  • Consistent airflow with wide purifying coverage over 1,500 square feet.
  • Comprehensive trio pre-filter that blocks all PM10 particulates from proceeding.
  • Reliable 60 sq. ft. certified HEPA filter focus on capturing microscopic particles as small as 0.1 microns.
  • No off-gassing as the exterior is made entirely from powdered coated steel.
  • Long-life (up to 5 years), low maintenance filter.
  • Comprehensive 5 years official Austin Air warranty that covers all non-filter parts.


  • Distinctive audible noise that is not great for night use.
  • Lighter than HealthMate but overall still bulky that requires the casters' support for transport.
  • Hassle bottom filter change requires unscrewing rather than a pop-out or slide-out mechanism.
  • Empty on features. Lacks auto/ sleep mode, air quality sensors, digital screen indicator, and timer.

Verdicts And Ratings

Build Quality



Particle Filtration

Smoke Filtration


Filter Cost



Austin Air Allergy Machine Air Purifier Review

Max Fernandez

A loving father and a dedicated reviewer for airfuji.com with more than 1000 air purifiers under his belt. Max Fernandez is also one of the million patients currently suffering from asthma. Feel free to nudge him if you have any questions.
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