Austin Air Allergy Machine Junior HM205

By: Austin Air


Manufacturer Part # A205A1 Our Item # IA2926

The Allergy Machine Junior HM205 is the smaller version of Austin Air's Allergy Machine air cleaner.  It offers the same filtration but instead of 6 lbs of granular carbon, a lightweight carbon cloth is used to create HEGA filtration - High Efficiency Gas Absorption. The carbon cloth does not release carbon dust when air passes through it, allowing it to be placed after the True HEPA filter.  The smaller size makes it very portable and easy to fit in tight spaces. Wheels are not included, but are an optional add-on item.

Allergy Machine Junior Cutaway

360° 4-Stage Filtering System:

Austin Air's 360° design draws air into all sides of the air purifier, passing it through first an outer pre-filter and then a main filter that combines three additional stages of filtration:

  • STAGE 1: Large Particle PermaFilt Pre-Filter (wraps around main filter)
    Cleanable re-usable prefilter traps large particles easily seen by the naked eye (dust, hair, lint, pet dander, etc) while prolonging the life of the main filter. Easy to maintain - simply vacuum clean monthly from the outside of the unit. 
  • STAGE 2: Medium Particle Pre-Filter
    Removes additional small to medium sized particles (mold spores, pollen).
  • STAGE 3: 30 sq ft Certified True HEPA filter media
    Medical-grade True HEPA pleated filter traps up to 99.97% of particles as small as 0.3 microns that pass through the filter.
  • STAGE 4: HEGA Carbon Cloth
    Lightweight HEGA cloth (High Efficiency Gas Adsorption) reduces chemical pollutants, gases, and odors.


  • Room Size: Up to 375 square feet
  • Dimensions: 11" W x 11" D x 16.5" H.
  • Weight: 14 lbs.
  • Fan Speeds: 3.
  • Fan Rating: Speed 1 - 50 CFM, Speed 2 - 100 CFM, Speed 3 - 200 CFM.
  • Decibel Levels: Speed 1 - 39.8 dB, Speed 2 - 55 dB, Speed 3 - 64.5 dB.
  • Energy Consumption: Speed 1 - 25 Watts, Speed 2 - 41 Watts, Speed 3 - 80 Watts.
  • Power: 120 V / 60 Hz; 1.0 Amps, 80 Watts.


  • Easy Operation - Just plug it in and turn it on! Simple manual knob control gives you a choice of 3 fan speeds. 
  • Compact size makes it easy to move from room to room.
  • No costly 3-month pre-filter replacements - simply vacuum clean the pre-filter from the outside of the unit once per month.
  • Steel housing with a selection of powder-coated paint colors.
  • Five Year Mechanical Warranty: The Allergy Machine HM205 is warranted to be free from defects in material and workmanship under normal residential use for five years from the date of purchase.
  • Five Year Pro-Rated Filter Warranty: The Austin Air filter can last up to 5 years, but you may need to change the filter more frequently depending on usage and environmental conditions.  With continuous 24/7 use, average filter life expectancy is about 2-3 years (the carbon will get fully saturated before the HEPA filter). Therefore, Austin Air offers a pro-rated filter warranty with discounted pricing available should you need to replace your filter before five years. 
  • Wheels are not included but can be added by purchasing Bottom Plate w/ Wheels

Manufacturer's Literature [PDF]:

Austin Air Owner's Manual
Austin Air Filter Replacement / Pro-Rated Warranty