Refurbished Products

Collection: Refurbished Products

We believe everyone deserves clean, fresh air. Our refurbished air purifiers provide an eco-friendly, cost-effective solution with maintained performance. Save money and reduce HEPA plastic waste by choosing a refurbished unit, supporting a more sustainable environment.

Limited Refurbished Products

Airdog X3 Refurbished
Regular price $300.00 USD
Sale price $300.00 Regular price
Perfect for 450-1600 sq. ft spacesNot just better for our pets, people-centric features amplified for our furry friends.
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Airdog X5 Refurbished
Regular price $449.00 USD
Sale price $449.00 Regular price
Enjoy superior air quality with the refurbished Airdog X5 Air Purifier! With advanced TPA® technology, it removes 99.9% of pollutants,...
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Cleaner Air Has Never Been This Easy

1 Year Warranty

1 Year Warranty

365-nights backed by safety + comfort

Pay as you go

Pay as you go

Buy-now, pay-later financing @ 0% APR

Fast, Free Shipping

Fast, Free Shipping

2-5 day shipping in the continental US

30-Day Home Trial

30-Day Home Trial

The best air you've ever had, guaranteed

24-hour Customer Service

24-hour Customer Service

Real, US-based customer support

Reviews from happy Airdog Customers

Cleaner air means healthier living.

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Don’t Just Take Our Word For It

Check out why people love Airdog

Let me be the first to tell you that this gadget is amazing! ... I can rest assured knowing that the garbage in the air is ending up on that filter and not lingering around for me to breathe all night. I can report that I've had no sinus infections since owning the Airdog which have plagued my existence. Its impact on my quality of life has been immeasurable."

Verified Customer

Karina M.

"We started with the purchase of a X8 Air Purifier for our living area and were amazed with results. We noticed that our allergies became almost non-existent and the normal kitchen odors that used to permeate the house after cooking a meal no longer lingered."

"For the first time in a while, the kids don't wake in the morning all coughs and sneezes. We are no longer taking any allergy medication. ... Thanks to the X8, we are finally dealing with the cause and not just our symptoms."

"This is the best air filter I've had. I'm in love with it. ... Due to cat dandruff, I have a hard time breathing. It is hard for me to sleep at night but since getting the X5, I am sleeping all night now and breathing through my nose again."

"My family is breathing so much better inside now—no more coughing, we sleep better at night, and even the pets seem to be more comfortable now."

"My LIFE depends on this Airdog X3. I am 75 years old and was told I have numerous allergies and would be needing a sleep apnea machine. ... I am allergy- and pill-free, no need for a sleep apnea machine, all my tests are perfect. Most of all, I BREATHE the MOST BEAUTIFUL FRESH AIR possible."

Verified Customer

Adam K.

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Frequently Asked Questions

How effective are air purifiers at removing dust particles?

Air purifiers with HEPA filters can capture up to 99.97% of dust particles as small as 0.3 microns. Airdog's TPA technology can eliminate even smaller particles up to 0.0146 microns with 99.99% efficiency.

What health problems can dust exposure cause?

Dust exposure can trigger various health issues including allergies (sneezing, runny nose, itchy eyes), asthma attacks (coughing, wheezing, shortness of breath), respiratory irritation, and reactions to dust mites. The EPA notes that indoor air is often more polluted than outdoor air, making dust control essential for health.

Where should I place my air purifier for maximum dust removal efficiency?

Place your air purifier in a central area with good ventilation, away from walls, furniture, curtains, or other obstacles that could restrict airflow. Avoid tight corners and ensure the device has space around it for optimal air circulation and filtration performance.

How often do air purifier filters need to be cleaned or replaced?

Filter maintenance varies by model and usage. Traditional HEPA filters typically need replacement every 3-6 months with replacement filters costing between $50-$150 each. However, some models like Airdog feature washable filters that can be cleaned with dish detergent and water, then reused, reducing long-term operating costs

Can air purifiers reduce the need for regular dusting and cleaning?

Yes, air purifiers help reduce dust accumulation on surfaces by capturing particles before they settle on furniture, floors, and other surfaces. This means less frequent dusting and cleaning is needed, though regular household cleaning is still recommended for optimal results.

What additional steps can I take to maximize my air purifier's dust removal efficiency?

To enhance performance, maintain indoor humidity between 30-50% to prevent dust mite growth, use doormats and remove shoes indoors to minimize dust entry, keep windows and doors closed during high pollen days, avoid indoor smoking, and continue regular vacuuming and surface cleaning alongside air purifier use.