Austin Air Allergy Machine Air Purifier

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Austin Air Allergy Machine Air Purifier HM405Austin Air Allergy Machine Air Purifier Sandstone Right Side View

The Austin Air Allergy Machine Air Purifier HM405 is developed for people who suffer from asthma, allergies, and sensitivity to airborne contaminants. Its high-capacity filtration system targets pollen, dust mites, mold spores, bacteria, viruses, chemicals, gases, and other particles that can affect indoor air quality.

Four stages of filtration combine two particle pre-filters, True Medical Grade HEPA, and Military-Grade HEGA carbon cloth to help reduce common asthma and allergy triggers. The system draws air through all four sides of the unit, creating a cleaner air pocket around you.

Ideal for rooms between 1,000 and 1,500 square feet, the Allergy Machine requires minimal maintenance and is designed for continuous residential use. Under normal conditions, its filter can last up to five years.


HM405 Austin Air Allergy Machine Air Purifier Features

  • Ideal users: People who suffer from asthma or allergies, individuals exposed to viruses and bacteria, those living in damp environments, and children with asthma.
  • Recommended room size: Ideal for areas between 1,000 and 1,500 square feet.
  • Allergen filtration: Designed for the immediate filtration of airborne allergens that may contribute to coughing, sneezing, itchy eyes, and stuffy or runny noses.
  • Four-stage filtration: Combines two pre-filters, True Medical Grade HEPA, and Military-Grade HEGA carbon cloth.
  • High-capacity performance: Helps remove pollen, dust mites, mold spores, pet dander, bacteria, viruses, chemicals, VOCs, and gases from indoor air.
  • 360-degree air intake: Draws air through all four sides of the purifier before passing it through the filtration system.
  • Continuous operation: Features a high-efficiency motor rated for continuous use at high RPM.
  • Three fan speeds: Allows you to adjust airflow based on room conditions and personal comfort.
  • Low maintenance: The exterior requires monthly vacuuming, while the main filter can last up to five years under normal residential use.
  • Durable construction: Features a perforated steel housing and a baked-on powder coat finish that does not produce paint-related off-gassing.
  • Made in the USA: Manufactured in the United States, with approximately 95% of its components sourced domestically.

HM405 Austin Air Allergy Machine Four Stages of Filtration

  • Stage 1: The large-particle pre-filter is made from bonded polyester and captures visible contaminants such as dust, hair, and pet dander.
  • Stage 2: The medium-particle pre-filter captures small to medium particles such as mold spores and pollen, adding another layer of protection.
  • Stage 3: The 60-square-foot True Medical Grade HEPA filter removes 99.97% of particles larger than 0.3 microns and 95% of particles larger than 0.1 microns.
  • Stage 4: Military-Grade HEGA carbon cloth provides a large surface area for the adsorption of chemicals, gases, VOCs, viruses, and bacteria.

The filter is designed to last up to five years under normal residential use. Step-by-step replacement instructions are included in the owner's manual.

View the Austin Air Allergy Machine Replacement Filter.

Austin Air Allergy Machine Air Purifier Four Levels of Filtration
Austin Air Allergy Machine Air Purifier Detailed View of Unit

HM405 Austin Air Allergy Machine Health Benefits

  • Nighttime comfort: Helps reduce airborne allergens that may contribute to nighttime allergy and asthma symptoms.
  • Cleaner indoor air: Helps reduce airborne particles, gases, odors, and contaminants in homes and offices.
  • Reduced respiratory irritation: Cleaner air may help ease coughing, wheezing, and sneezing caused by airborne irritants.
  • Reduced exposure: Helps lower the concentration of airborne bacteria and viruses through high-capacity filtration.
  • Improved sleeping environment: Removes particles, gases, and odors that may interfere with comfortable, restful sleep.
  • Everyday respiratory support: Captures irritants that may contribute to dry mouth, runny noses, itchy eyes, and scratchy throats.

HM405 Austin Air Allergy Machine Air Purifier Specifications

  • Model: HM405
  • Product type: Medical-grade air purifier
  • Recommended area: Between 1,000 and 1,500 square feet
  • Dimensions: 23 inches high x 14.5 inches wide x 14.5 inches deep
  • Weight: 29 pounds
  • Air intake: 360-degree perforated steel intake housing
  • Finish: Baked-on powder coat paint finish
  • Fan: Three-speed centrifugal fan
  • Motor: High-efficiency motor rated for continuous operation at high RPM
  • Power requirements: 1.2 amps, 120 volts, and 147 watts on the high setting
  • Rated fan airflow: 75 CFM on the lowest setting to 400 CFM on the highest setting
  • Noise level: Approximately 50 dB to 62 dB
  • HEPA media: 60 square feet of True Medical Grade HEPA
  • Particle removal: Removes 99.97% of particles larger than 0.3 microns and 95% of particles larger than 0.1 microns
  • Filter life: Up to five years under normal residential use
  • Certification: CSA/NRTL approved and independently tested to meet recognized safety and performance standards
  • Country of manufacture: Made in the USA
Austin Air Allergy Machine Air Purifier Making Air Clean for 30 Years

Warranty Information

  • Mechanical warranty: Five-year warranty against defects in materials and workmanship from the date of purchase, provided the purifier is operated under normal residential use and the warranty registration is completed and returned to Austin Air Systems.
  • Filter warranty: Five-year prorated filter warranty under normal residential use.

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Improve your indoor air quality with the Austin Air Allergy Machine HM405 and enjoy powerful, medical-grade filtration designed for asthma and allergy relief.

Order the Austin Air Allergy Machine Air Purifier today and create a cleaner, healthier, and more comfortable environment in your home.

Order Processing: Once you place your order, you'll receive an order confirmation email. Please allow 1-3 business days for processing. If there are any unexpected delays, we’ll reach out to you immediately.

Shipping Methods:

  • Standard Shipping: Small items ship with UPS, FedEx, or USPS. They usually do not need a delivery signature.
  • Freight Shipping: Large or heavy items ship with a box truck to your curbside or loading dock. They will schedule a delivery appointment when the shipment is in your area.

Delivery Timeline:

  • Processing: Please allow 1-3 business days for us to process your order in our system.
  • Handling Time: This product should ship out in days from the time it is processed.
  • Transit Time: Ground orders take 1-5 business days. Freight shipments may take 3-10 business days, depending on your location.
  • Delivery Appointment: For freight deliveries, the carrier will contact you to set a delivery time. Someone must be present to receive the delivery.

Receiving Your Shipment: Inspect your shipment for damage before signing the delivery receipt. For any issues, mark “DAMAGED, NEEDS REVIEW,” take photos, and contact us within 2-3 business days.

Warranty Information:

We’re an authorized dealer; all products include the original manufacturer’s warranty. See product details for coverage specifics.

Questions or a claim? Contact us or the manufacturer for assistance.

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