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AirDoctor 3000 Series 2-Year Filter Combo Pack
What’s included:
All the filters you need for 2 years of clean air (based on recommended filter changes). Fits all 3000 and 3500 models.
This bundle saves you 20% vs buying individual filters.
AirDoctor captures 99.99% of airborne particles.
Pet dander
Dust
Volatile organic compounds
Toxic gases
Mold spores
Pollen
Viruses & bacteria
Smoke
Premium air purification with UltraHEPA®
Captures particles 100x smaller than the HEPA standard.
We take over 20,000 breaths per day, inhaling whatever pollutants are in our environment. Even when you’re “safe” at home your health is at risk.
Not only does outdoor pollution make its way inside, there are many indoor sources of air pollution too, including stoves, cleaning products, and building materials. In fact, the Environmental Protection Agency (EPA) says indoor air can be 5x–100x more polluted than outdoor air!
Now the good news. AirDoctor’s UltraHEPA filter removes virtually 100% of airborne contaminants as small as 0.003 microns—that’s 100x smaller than the HEPA standard.
Capture the airborne contaminants hiding in your home’s air and take control of your air quality with AirDoctor.
Inside our Premium Carbon/VOC Filter
Remove the toxic gases most air purifiers miss.
HEPA-only air purifiers only do half the job. They remove harmful particles, but do nothing to protect you from toxic gases and volatile organic compounds (VOCs):
Our premium carbon filter enhanced with potassium permanganate (KMnO₄) is the answer. The activated carbon traps gases and VOCs, and the KMnO₄ converts them into stable, non-hazardous by-products.
Get full-spectrum protection with AirDoctor.
Overall rating: 3.9824562 / 5 from 57 reviews.
This 2-year filter pack for 3000 and 3500 models offers a 20% savings over individual purchases. Customers appreciate the clean air and effective filters.
Review topics: [value, shipping, customer service, problems, filters, air, home, unit, air doctor].
"Besides the inflated, difficult to believe price of replacement filters, this product page is misleading. The carbon filters I received are fully rectangular and only fit in my AD3000 model, not in my AD3500. My 3000 from 5 or 6 years ago was $300. Replacing the filters makes it thousands of dollars to own over years."
"It does a great job, it’s a bit expensive but useful. My kids have asthma and we have 2 dogs…. so this has been a huge help. The kids have remained healthy for the past 2 years, no asthma complications and I believe that’s directly related to the continued use of the Air Doctor. It has been continuously on since March of 2020. We love Air Doctor!"
"While we use 3 Air Doctors in our home and they work efficiently and without fail now for several years…. the cost of the filters are really getting ridiculous and we may reconsider our options for our indoor air quality. I may have reconsidered buying these units if I knew the price of their filters were going to become so expensive!"
"I purchased two 3500i air purifiers in October of 2025 and had to replace both filters in one unit and the charcoal primary in the other. This is at 6 months so they shouldn’t be considered as a dated filter. I now run my bedroom unit at night while sleeping and the living room unit during the day while occupied. I’m still looking for a mor efficient way of cleaning the air in my house that isn’t a budget buster."
"They shipped it in a slow method. They would not correct it when I tried to call and get help."
"Our air is clean and when I see how dirty the filters are at six and twelve months I know in our house were breathing clean air because they are working."
"Great! I feel like I don’t get sick because of it!"
"Sawitri. com"
"I love my Air Doctor, just wish the filters weren’t so expensive. I know you can make them less expensive!!"
"It’s the first week in May and I ordered them on 4/5/26!!"
Frequently Asked Questions
Air changes per hour (ACH) refers to how many times the air is changed with new, clean air in a given space within the span of an hour. A Harvard University Study cited by the CDC recommends at least 4 air changes per hour to effectively remove allergens like smoke, bacteria, viruses, dust, and pollen.
CADR, or Clean Air Delivery Rate, refers to your air purifier’s efficiency in removing these three contaminants over time: pollen, dust, and smoke. Higher CADR numbers indicate better air cleaning performance. The smoke CADR number is most stringent, reflecting the unit’s ability to eliminate the smallest and most dangerous particles from your indoor air.
Great question! Choosing the right air purifier will depend on the size of your room and the air circulations per hour. According to the Harvard University study, 4 air changes per hour are recommended for optimal purification. AirDoctor units are designed to meet this standard.
AirDoctor 1000: Replace UltraHEPA® and Carbon/VOC filters every 6 months.
All other AirDoctor units:
The indicator light on your AirDoctor will also light on when it’s time to replace your filter
– no more guesswork!
We stand behind the quality of our products. That’s why we offer a 30-day money-back guarantee on all purchases. If for any reason you’re not completely satisfied with your AirDoctor, simply reach out to our friendly customer service team at 1-800-221-2515, and we’ll gladly issue you a full refund, minus shipping and processing fees.
Yes! If you’re interested in a payment plan option, just select the Affirm payment option at checkout and follow the instructions. Terms and conditions apply.**
**Various purchase plans are available based on approval. Regretfully, Affirm is NOT available in Iowa or West Virginia due to state-specific financial regulations.
Yes! We've partnered with Truemed to make it easy for you to get reimbursed for your AirDoctor products using your HSA or FSA funds.
To see if you qualify, follow the steps below after making your purchase:
1) Fill out the short intake form from Truemed to check your eligibility. You'll find the link to the form in your AirDoctor order confirmation email.
2) If approved, Truemed will email you a Letter of Medical Necessity within 24 hours.
3) Send this letter, along with your order confirmation receipt, to your HSA/FSA provider for reimbursement.
It's that simple!
