Aftermarket · Made by Think Crucial · Not made by AirDoctor
Replacement filters for the Air Doctor AD3000 & AD3500.
A 5-piece set made by Think Crucial: 1 main filter, 2 carbon filters and 2 pre-filters. $112.81 less than buying the same pieces from AirDoctor. No subscription.
4.4from 39 ratings on Amazon(as of Oct 1, 2026)
- Main filter × 1$63.95
- Carbon/VOC filter × 2 at $63.95$127.90
- Pre-Filter 3-pack (sold only in 3s)$20.95
- AirDoctor, same pieces$212.80
- Think Crucial 5-piece set$99.99
AirDoctor also sells a 1-Year Combo Pack for $171.99. Its site doesn't list what the combo contains, so we compare piece by piece. AirDoctor list prices before any sale or coupon.
- Shipping
Free U.S. shipping on every order
- Dispatch
Ships the same business day when ordered by 2pm ET
- Fit
Fit guaranteed on the models listed
- Returns
30-day returns with a prepaid label
Think Crucial vs. buying from AirDoctor.
The same pieces, side by side. AirDoctor's prices are its list prices on October 5, 2026.
| AD3000 / AD3500 | Think Crucial | AirDoctor, same pieces |
|---|---|---|
| What you get | 1 main filter, 2 carbon filters and 2 pre-filters | 1 main filter, 2 Carbon/VOC filters and a Pre-Filter 3-pack |
| Price | $99.99 | $212.80 |
| Difference | $112.81 less | – |
| If it doesn't fit | Prepaid return label, full refund, 30 days | AirDoctor's own terms |
| Made by | Think Crucial (aftermarket) | AirDoctor |
AirDoctor list prices from airdoctorpro.com on October 5, 2026, before any AirDoctor sale or coupon. AirDoctor also sells a 1-Year Combo Pack for $171.99. Its site doesn't list what the combo contains, so we compare piece by piece.
What's in the box.
Exactly what ships, so you can match it against what's in your purifier now.
- 1 ×main air filter
pleated panel - 2 ×carbon filters
honeycomb mesh panel with pull-tab - 2 ×pre-filters
flat black pad
- Fits
- AirDoctor AD3000 and AD3500
- In the box
- 1 main filter, 2 carbon filters and 2 pre-filters
- Main filter
- 17" × 14" × 2" thick
- Replaces part no.
- 10AD350HRF01, 10AD350GRF01
- Subscription
- None. Buy when you need filters
- Made by
- Think Crucial (aftermarket, not affiliated with AirDoctor)
- Ships
- Free, from a U.S. warehouse. Same business day when ordered by 2pm ET; arrives in 2–5 business days
What owners say.
Reviews of this set on Amazon.com, quoted word for word. Rated 4.4 out of 5 from 39 ratings as of October 1, 2026.
“Perfect fit for air doctor purifier.”
“These filters fit my machine perfectly.”
“Excellent fit. Immediate results (I had left the old filter on way too long)”
Check your model.
This set fits the AirDoctor AD3000 and AD3500. Two minutes now saves a return later.
- 01Find the model number
Check the label on your purifier, your owner's manual or your AirDoctor order confirmation.
- 02Match it to this page
The AD3000 and AD3500 take the same filters, so this set fits both.
- 03Compare the main filter size
Ours measures 17" × 14" × 2" thick. If your old filter matches, you're set.
- 04Still not sure?
Email your model number to support@thinkcrucial.com and we'll tell you which set fits. We reply within one business day.
Different AirDoctor model?
We make sets for four AirDoctor models.
- AD5000 / AD5500
- 14-piece set, $114.99
- AD2000
- 3-piece set, $59.99
- AD1000
- Filter set, from $56.99
We don't sell filters for other AirDoctor models, such as the AD2500 or AD4000.
How to swap it in.
Steps from AirDoctor's own guide. No tools.
- 01Power off
Turn the purifier off and unplug it.
- 02Open the front
Facing the front of the unit, pull the top of the front cover toward you and lift it off.
- 03Swap the filters
Lift out the old main and carbon filters by the tabs on both sides, then insert the new ones.
- 04Close the cover
Seat the cover's bottom hooks first, then snap the top back into its locked position.
- 05Reset the light
Hold the Auto and Dim buttons for 5 seconds until the change-filter light turns off.
Before you order.
Straight answers. Anything else, email support@thinkcrucial.com.
Q.01Are these AirDoctor filters?
Q.02Will it fit my purifier?
Q.03What about my AirDoctor warranty?
Q.04How often should I replace the filters?
Q.05Is there a subscription?
Q.06When will it arrive?
We make what we sell.
Think Crucial started in 2007 at a family vacuum repair shop. Today we're a U.S. company in Hollywood, Florida, making aftermarket filters, bags and parts built to fit the machines you already own. Most people can fit the part themselves. They just need the right one, and a way to check it first.
Questions before you order? Email support@thinkcrucial.com. We reply within one business day.
Ready to order
5-piece set for the AirDoctor AD3000 / AD3500
Fits AD3000 / AD3500Fit guaranteed: prepaid return label if it doesn't fit the model we list. 30-day returns.
Not made by AirDoctor. These are compatible replacement filters made by Think Crucial, not original equipment manufacturer (OEM) parts. AirDoctor is a registered trademark of AirDoctor LLC, used here only to describe compatibility. Think Crucial is not affiliated with or endorsed by AirDoctor LLC. AirDoctor list prices from airdoctorpro.com on October 5, 2026, before any AirDoctor sale or coupon.
© 2026 Crucial Brands Inc., DBA Think Crucial. Hollywood, Florida.