TL;DR
WIRED’s commerce team lists current AirDoctor discounts for January 2026, including a $400 pre-order discount on the upcoming AirDoctor 4000 and 15% off filter combo packs. The story highlights model-specific performance claims for the Smart 5500i and the 3500 and notes testing and buying guides available from the publisher.
What happened
WIRED’s coupon roundup for January 2026 highlights several AirDoctor promotions intended to lower the cost of home air purification. The piece says customers can receive an extra $400 off when pre-ordering the new AirDoctor 4000 and that filter combo packs are currently priced 15% lower without a promo code. The article also revisits model-level performance takeaways from WIRED testing: the Smart 5500i is recommended for fine particulates and gases, while the 3500 is called out for handling mold and pet dander in medium-to-large rooms. The write-up frames these offers against increased consumer interest in air purifiers following the COVID pandemic and repeated wildfire smoke events, and it links readers to additional buying guides and product roundups. The article includes an editorial note that product selections are independent and that the publisher may receive compensation through affiliate links.
Why it matters
- Lower upfront costs may make higher-capacity air purifiers more accessible to households concerned about indoor air quality.
- Discounts on filter combo packs can reduce ongoing maintenance expenses, which are a major part of ownership cost.
- Model-specific performance details help buyers match a purifier to room size and pollution types (particulates, gases, pet dander, mold).
Key facts
- Source: WIRED commerce article published Jan. 4, 2026 by Molly Higgins.
- AirDoctor is offering an extra $400 off when pre-ordering the AirDoctor 4000, per the article.
- The AirDoctor 4000 is described as having triple filtration, 360-degree air intake, and trapping 99.99% of particles such as allergens, smoke, mold, and bacteria.
- AirDoctor filter combo packs are currently marked 15% off with no promo code required.
- WIRED’s testing favored the AirDoctor Smart 5500i for PM2.5 and gases, citing HEPA filtration plus a dual-action/carbon VOC trap and an air exchange rate of four times per hour in a 1,000-square-foot space.
- The AirDoctor 3500 is highlighted for mold and pet-dander control, circulating air in a 630-square-foot area four times per hour and using 3-stage UltraHEPA filtration.
- The article notes increased consumer interest in purifiers after the COVID pandemic and wildfire smoke events.
- WIRED states that product selections are independent but may earn compensation from retailer links.
What to watch next
- Timing and final pricing for the AirDoctor 4000 launch and pre-order availability: not confirmed in the source.
- Whether the stated $400 pre-order saving differs from regular promotional pricing or other discounts: not confirmed in the source.
- Restock and long-term pricing for filter combo packs and individual replacement filters: not confirmed in the source.
Quick glossary
- HEPA: High-Efficiency Particulate Air filter standard for trapping a large portion of airborne particles down to a specified micron size.
- PM2.5: Fine particulate matter with a diameter of 2.5 micrometers or smaller, associated with smoke, combustion, and some pollution-related health risks.
- VOC: Volatile organic compounds: gases emitted by certain solids or liquids, including household products and paints, that can affect indoor air quality.
- Pre-order: An order placed in advance of a product’s official release so customers can reserve units prior to general availability.
- UltraHEPA: A marketing or product term indicating a filter rated to capture particles at a higher efficiency than standard HEPA in specific testing contexts.
Reader FAQ
How much can I save on an AirDoctor purifier right now?
The article reports an extra $400 off when pre-ordering the AirDoctor 4000 and a 15% discount on filter combo packs.
Do I need a promo code for the filter combo pack discount?
No promo code is required for the 15% discount on filter combo packs, according to the article.
Which AirDoctor model does WIRED recommend for fine particulates and gases?
WIRED’s testing favored the Smart 5500i for PM2.5 and gases due to HEPA and dual-action carbon/VOC filtration and a listed air-exchange rate.
Is the AirDoctor 4000 available now?
The article describes a pre-order offer for the AirDoctor 4000 but does not confirm full release date or general availability.
Are warranty and shipping details included?
Not confirmed in the source.

MOLLY HIGGINS GEAR JAN 4, 2026 2:14 AM Top AirDoctor Coupon Codes for January 2026 Save up to $400 on top air purifiers and filters with verified AirDoctor promo codes…
Sources
- AirDoctor Coupon Codes: 40% Off | January 2026
- 40% Off AirDoctor Coupons, Promo Codes, Deals
- 50% Off AIRDoctor Discount Codes & Promo Codes
- Air Doctor
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