• Austin Air Immunity Machine air purifier in Graphite, front view
  • Austin Air Immunity Machine air purifier in Graphite, angled view
  • Austin Air Immunity Machine air purifier showing steel side exhaust vent
  • Austin Air Immunity Machine air purifier in Graphite, three-quarter view
Austin Air Immunity Machine air purifier in Graphite, front view
Austin Air Immunity Machine air purifier in Graphite, angled view
Austin Air Immunity Machine air purifier showing steel side exhaust vent
Austin Air Immunity Machine air purifier in Graphite, three-quarter view

Austin Air

Austin Air Immunity Machine (B444D1) Air Purifier | 8-Phase Medical HEPA + HEGA Carbon Cloth

SKU 769100-21779-3
$1,145.00
$1,145.00

100% genuine, brand-new Austin Air product, sourced through authorized distributors.

✓ Genuine Products ✓ Manufacturer Warranty ✓ Ships in 5–9 Business Days ✓ US-Based Support
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Estimated shipping time

You can typically expect your items to arrive within 5-9 business days, depending on your location and product availability.

What is your Return Policy?

Effective Date: August 17, 2026

1. Overview (Quick Reference)

  • Return Window: 30 days from delivery
  • Product Condition Accepted: New (unused, undamaged, original packaging, tags and labels intact) for change-of-mind returns; any condition for defective or damaged items
  • Return Method: By mail, using a trackable shipping method
  • Return Shipping Cost: Customer pays for change-of-mind returns; Robo Mechanix covers defective, damaged, or incorrect items
  • Restocking Fee: 20% for change-of-mind returns; 0% for defective, damaged, or incorrect items
  • Refund Processing Time: 5-7 business days after we receive and inspect the returned item
  • Refund Method: Original payment method
  • Exchanges: Accepted for defective, damaged, or incorrect items

2. Scope and Intent

This Return and Refund Policy applies to all purchases made through the Robo Mechanix website located at robo-mechanix.com ("Website").

3. Contact Information

For questions regarding returns or refunds, contact our Customer Service team:

Email: support@robo-mechanix.com

Phone: +1 (224) 257-3560

Address: 114 Presidio Ct, Apt 207, Schaumburg, Illinois 60195, United States

Hours: Monday-Saturday, 8:00 AM to 5:00 PM CT, Sunday Closed

4. Return Eligibility

Customers in the United States may return eligible products within 30 days of receipt, subject to the conditions below.

4.1 Conditions for Return

  • Unused and Undamaged: Items must be unused, undamaged, and in the same condition received.
  • Original Packaging: Items must be in their original packaging, with all tags and labels intact.
  • Proof of Purchase: A receipt or order confirmation is required.

5. Return Process

5.1 Initiating a Return. Contact Customer Service via email (support@robo-mechanix.com) or phone (+1 (224) 257-3560) within 30 days of receiving your order. Provide your order number and reason for the return. We will review your request and provide return instructions, including a Return Merchandise Authorization (RMA) number if applicable.

5.2 Preparing Your Return. Package the Item Safely: Use original packaging and include all accessories, manuals, and free gifts. Include Documentation: Include the return authorization form and supporting documents (e.g., photos if requested). For defective, damaged, or incorrect items, Robo Mechanix will provide a prepaid return shipping label.

5.3 Shipping the Return. Use a trackable shipping method to ensure safe delivery. Ship the item within 7 days of receiving the return authorization.

6. Return Shipping Costs and Fees

  • Return Shipping Costs (Change of Mind): The customer is responsible for return shipping costs.
  • Return Shipping Costs (Defective, Damaged, or Incorrect Items): Robo Mechanix covers return shipping costs.
  • Restocking Fees: A 20% restocking fee applies to change-of-mind returns. No restocking fee applies to defective, damaged, or incorrect items.

7. Specific Return and Refund Conditions

7.1 Returns Due to Change of Mind. Eligibility: Items must be unused, undamaged, and in original packaging. Refund: Refunds will be issued to the original payment method, minus a 20% restocking fee. Return shipping is the customer's responsibility.

7.2 Defective or Damaged Goods. Notification: Contact us within 7 days of delivery. Documentation: Provide photos or videos of the defect or damage. Resolution: We will offer a replacement or full refund, including return shipping.

7.3 Incorrect Product Received. Notification: Contact us immediately. Resolution: We will arrange a return at our expense and send the correct product.

7.4 Product Never Arrived. Notification: Contact us if your product does not arrive within the estimated delivery time stated in our Shipping Policy. Resolution: We will investigate with the carrier and offer a replacement or full refund if the item is confirmed lost.

7.5 Order Cancellation. Before Shipment: Orders can be canceled for a full refund if not yet shipped. After Shipment: Follow the standard return process above once you receive the product.

8. Refunds

8.1 Refund Conditions. Refunds are issued after inspection of returned items. You will be notified via email regarding approval or rejection.

8.2 Refund Processing. Refunds are processed to the original payment method. Refunds may take 5-7 business days to appear in your account.

8.3 Partial Refunds. Partial refunds may apply if items are returned not in original condition or after the 30-day return window.

9. Exchanges

Eligibility: Defective, damaged, or incorrect items. Process: Contact support@robo-mechanix.com to request an exchange. Shipping Costs: Covered by Robo Mechanix.

10. Non-Returnable Items

The following items are not eligible for return or refund: Custom or personalized products; Perishable goods (if any); Gift cards.

11. Timelines

  • Return Window: 30 days from delivery.
  • Damage/Defect Reporting: Within 7 days of delivery.
  • Refund Processing: 5-7 business days after receiving and inspecting returned items.

12. Legal Rights

This policy does not affect any statutory rights under applicable U.S. law.

13. Questions and Support

Robo Mechanix

Phone: +1 (224) 257-3560

Email: support@robo-mechanix.com

Business Hours: Monday-Saturday, 8:00 AM to 5:00 PM CT, Sunday Closed

Address: 114 Presidio Ct, Apt 207, Schaumburg, Illinois 60195, United States

For additional assistance, visit our FAQ page.

Note: By making a purchase on our Website, you agree to this Return and Refund Policy.

Austin Air Immunity Machine air purifier in Graphite, front view Austin Air Immunity Machine air purifier in Graphite, angled view Austin Air Immunity Machine air purifier showing steel side exhaust vent Austin Air Immunity Machine air purifier in Graphite, three-quarter view
Austin Air Immunity Machine air purifier in Graphite, front view Austin Air Immunity Machine air purifier in Graphite, angled view Austin Air Immunity Machine air purifier showing steel side exhaust vent Austin Air Immunity Machine air purifier in Graphite, three-quarter view

Austin Air

Austin Air Immunity Machine (B444D1) Air Purifier | 8-Phase Medical HEPA + HEGA Carbon Cloth

SKU 769100-21779-3
$1,145.00
Austin Air Immunity Machine air purifier in Graphite, front view

Product Description

The Austin Air Immunity Machine is the brand's most advanced air purifier — the only Austin Air unit with an 8-phase filtration system. It layers a HEGA military-grade carbon cloth on top of medical-grade HEPA and a deep activated-carbon and mineral bed, so it tackles the widest range of fine particles, gases, chemicals, and odors Austin Air filters for — all inside a solid-steel body handcrafted in Buffalo, NY.

Key Features

  • 8-phase filtration — the only Austin Air system with eight stages, combining four granular carbon/mineral layers, medical-grade HEPA, and HEGA carbon cloth.
  • True Medical Grade HEPA — 60 sq. ft. of HEPA captures 99.97% of particles at 0.3 microns and 99% down to 0.1 microns, including smoke, dust, pollen, and dander.
  • HEGA carbon cloth — a High-Efficiency Gas Adsorption cloth originally developed for military chemical-defense use, adding an extra layer of gas, chemical, and odor adsorption beyond the carbon bed.
  • Deep carbon & mineral bed — activated carbon, potassium iodide impregnated carbon, and mineral media neutralize VOCs, formaldehyde, and everyday chemical gases.
  • 360° air intake through a perforated steel housing for faster, whole-room cleaning.
  • No ozone, no ionization, no off-gassing — purely mechanical filtration.
  • 3-speed centrifugal fan moving up to 400 CFM on high, with a quiet <50 dB low setting.
  • Solid steel construction with a baked-on powder-coat finish; CSA approved.
  • Filter built to last up to 5 years, backed by a 5-year mechanical warranty and 5-year prorated filter warranty.
  • Plugs into any standard 120V outlet (~147 W max) and rolls anywhere on its caster wheels.

The 8-Phase Filtration System

  • Phase 1 — Large-particle pre-filter: hair, dust, and visible debris.
  • Phase 2 — Medium-particle pre-filter: pollen, mold spores, and smaller dust.
  • Phase 3 — Activated carbon: everyday odors and gases.
  • Phase 4 — Potassium iodide impregnated carbon: harder-to-capture chemical gases.
  • Phase 5 — Mineral-based filtration: additional gas and chemical adsorption.
  • Phase 6 — Proprietary impregnated mineral media: extended VOC and chemical capture.
  • Phase 7 — True Medical Grade HEPA: 60 sq. ft., 99.97% at 0.3 microns.
  • Phase 8 — HEGA carbon cloth: military-grade gas-adsorption cloth for a final chemical/odor pass.

Best For

  • Households wanting Austin Air's most complete particle, gas, and chemical filtration in one unit
  • Chemical sensitivities (MCS), VOCs, and off-gassing from new flooring, paint, or cabinetry
  • Wildfire smoke, smog, and traffic emissions
  • Clinics, classrooms, and offices needing medical-grade air cleaning with maximum gas adsorption

Specifications

Type 8-phase HEPA + carbon air purifier
Filtration phases 8 (incl. medical HEPA + HEGA carbon cloth)
HEPA media 60 sq. ft. True Medical Grade HEPA (99.97% at 0.3 microns, 99% at 0.1 microns)
Gas / chemical media Activated carbon, potassium iodide impregnated carbon, mineral & proprietary mineral media, plus HEGA carbon cloth
Fan 3-speed centrifugal
Airflow Up to 400 CFM (high) / 75 CFM (low)
Sound level <50–62 dB across speeds
Power 120V; ~147 W max
Air intake 360° perforated steel
Housing Solid steel, baked-on powder coat; CSA approved
Emissions No ozone, no ionization, no off-gassing
Dimensions 14.5"L × 14.5"W × 23"H
Weight 47 lbs
Filter life Up to 5 years (normal residential use)
Color Graphite
Warranty 5-year mechanical; 5-year prorated filter
Origin Handcrafted in Buffalo, NY, USA
Model B444D1

Frequently Asked Questions

How is the Immunity Machine different from the Bedroom Machine?
The Immunity Machine is the only Austin Air unit with a full 8-phase system — four granular carbon/mineral layers plus medical HEPA and HEGA carbon cloth — for the widest range of particles, gases, and chemicals. The Bedroom Machine is a 5-stage HEPA + HEGA unit optimized for nighttime use.

Is this a genuine Austin Air unit covered by warranty?
Yes. Robo Mechanix is an authorized Austin Air dealer, so every Immunity Machine is genuine, handcrafted in Buffalo, NY, and fully warranty-eligible — a 5-year mechanical warranty plus a 5-year prorated filter warranty — with our US-based team as your first point of contact.

How often does the filter need replacing?
Up to 5 years under normal residential use. Refit the genuine Immunity Machine Replacement Filter when due.

Does it produce ozone?
No. Austin Air uses purely mechanical filtration — no ozone, no ionization, and no off-gassing.

How long does delivery take?
Total estimated delivery is 5–9 business days (1–2 business days processing plus 4–7 business days transit), with free shipping to the 48 contiguous states.

Why Buy From Robo Mechanix

  • Authorized Austin Air dealer — every purifier is genuine, made in the USA, and fully warranty-eligible.
  • Warranty and support handled by our US-based team as your first point of contact.
  • Free shipping to the 48 contiguous states, with 5–9 business day delivery.
  • We help you match the right Austin Air model and filter to your air-quality needs before you buy.

Keep it running with the genuine Immunity Machine Replacement Filter, compare the 5-stage Bedroom Machine, or browse all Austin Air purifiers.

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