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Price:$250.00+

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Model-B DRUM FAN Edition

The3DHandyman  

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Star Seller. This seller consistently earned 5-star reviews, shipped on time, and replied quickly to any messages they received.

Highlights

  • Supplies for making crafts
  • Materials: Plastic, Aluminum

Model-B Air Filter Kit
Caterpillar Drum Fan Edition
Sorry for the significant price increases. Tariffs have hit hard.

The images explain a lot about the kit. If you want to know even more, watch this video on the Model-B
https://youtu.be/eYOvnqoW4H0

You will need to assemble the kit. Watch this video to see the whole process
https://youtu.be/FDroqRfWiWE

You will need to buy the Fan and Filters separately. These are NOT included in the kit.

1400CFM Caterpillar DRUM FAN
https://amzn.to/3P4oXue

The design works with any brand of filter but 3M Filtrete brand filters preform the best in my tests. MERV 13 or MERV 14 filters are highly recommended. You will need 4 total filters for this kit. If you buy in bulk, the prices are better. The larger the filter, the more economical it tends to be. Large filters are also more efficient when filled with dust. Choose the largest filter that you can fit into your space.

14x30x1 (6 pack)
https://amzn.to/4aocSrm

16x25x1 (6 pack)
https://amzn.to/4a66tBq

16x30x1 (6 pack) (MERV 12)
https://amzn.to/4cwDHva

20x20x1 (4 pack)
https://amzn.to/43yjPDR

20x25x1 (6 pack)
https://amzn.to/4aqdKf1

20x30x1 (6-pack)
https://amzn.to/4a7294X

K&N MERV 13 Washable filters are at the links below. These are expensive up front but will last a lifetime.

20x20x1
https://amzn.to/49iK5mW

20x25x1
https://amzn.to/3vvPglJ

20x30x1
https://amzn.to/3TVcjQg

In most cases these kits preform better than professional HEPA filters in smoke tests! Testing data on these filters can be found here:
https://the3dhandyman.com/what-is-the-best-air-filter/

There is a lot of information on this page. If you have any questions about it or a specific use case for the filters, contact me! I am happy to help.

Keep in mind this is a do-it-yourself style air filter kit. Correct assembly is required to filter the air passing through the device. Results with this device are dependent on the filter that you choose. The fundamentals of this design are based on a Corsi-Rosenthal air filter (sometimes called a “comparetto cube” or "cube filter"). The quality of filtration achieved by these designs have not been independently tested or verified. Viruses and other extremely small particles may not be filtered out by the device. Use at your own risk. View the Product Liability Disclaimer here - https://the3dhandyman.com/product-liability-disclaimer/

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  • Order today to get by Jun 27-Jul 22
  • Returns & exchanges accepted within 30 days
  • Cost to ship: $18.27
  • Ships from: Saint Louis, MO

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The3DHandyman
The3DHandyman ·

St Louis, Missouri

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience. 4.9
·
3.8k sales
·
4 years on Etsy
1 shop member

Typically responds within a few hours

Typically responds within a few hours

Smooth shipping Has a history of shipping on time with tracking.

Speedy replies Has a history of replying to messages quickly.

Rave reviews Average review rating is 4.8 or higher.

Reviews for this item

What buyers say, summarized by AI: Great quality Easy to assemble Helpful seller Well packaged As described Love it Clear instructions

4.8

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience.

(119 reviews)

4.9 Item quality
4.7 Shipping
4.9 Customer service
98% Buyers recommend
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5 out of 5 stars 5 This item

Erik May 30, 2026

Excellent! Works exactly as described and seller was very quick and thorough in his response. I tested the unit with a Dylos meter and I was able to achieve near zero particulate readings. The unit also arrived quicker than estimated. Would purchase again!

Erik May 30, 2026

5 out of 5 stars 5 This item

james May 29, 2026

This review request is a bit premature because I have not had a chance yet to use it. However.... 1. Nate was very helpful and punctual in helping me choose the best option for my circumstance. We used the chat function on his web site. 2.The product was extremely well wrapped for shipping and arrived without damage. 3 . It's easy to assemble with good instructions. It took me about an hour together with filters and cat fan. 4. My filters (Filtrete 20 x 30 Merv 14) are very slightly too tall, but I was able to squeeze them in. When I change them out, or clean the filter next time, I'm tempted to remove the top and bottom seals and set them back in the same plane as the side seals. 5. It is much quieter than my shop vac. 6. Very pleased so far.

james May 29, 2026

5 out of 5 stars 5 This item

Adam May 20, 2026

Exactly what you would want.

Adam May 20, 2026

4 out of 5 stars 4 This item

Andrew May 19, 2026

Sizing of filters is important. I had a tough time fitting the ones that were supposed to fit.

Andrew May 19, 2026

Response from The Three D Handyman

3M Filters tend to fit the most tightly. Try out the "tight filter trick" video if you have issues with this. Once the foam has compressed for a while your next filter change will go a lot more smoothly. If you have questions, I'm always available!

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Listed on Jun 5, 2026