Room Air Filter - LEVOIT Core Mini filter compatible

Air Filter case for Laukowind Core Mini HEPA filter (LEVOIT Core Mini) & 140mm Fan.
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updated March 27, 2025

Description

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Made a stylish and airflow oriented HEPA filter case with an 140mm Fan.
Perfect if u just need a thing that works and u can repair broken parts (in this case only the fan?) with ease.

Case has a thread in the top & case part for holding together. 

Filter will be hold down with a pressfit between case & fanadapter part.

It is possible to mount an adruino or something inside the top part for controlling remotely, or use a 7v adapter on the fan, but i just use a silent fan and let it blast at 12v.

Material
I used PETG black casue i like the look and also PETG slides am bit better on a thread.
Also i put a drop of lubriucant on the thread for easier assembly.

My settings -
Layerhight - 0,3mm
Layerwidth - 0,5mm (everywhere)
Walls - 2
Infill - 15%
Generator - Classic

Printtime for me - (The threads are rly slowing down)
Case - ~ 15h
Top - ~ 5h
FanAdapter - ~ 1h

Dimensions -
Height - ~ 19cm
Diameter - ~ 21cm

i could get away with a smaller width and 10% infill to save some filament but i didnt care here.

Parts u need / i used

  • https://www.amazon.de/dp/B0DG7ZW1K6 Laukowind Core Mini Ersatz-HEPA-Filter, kompatibel mit LEVOIT Core Mini Luftreiniger - 2 pieces, Cheap and holds up to 8 month # ~ 21€ 2 pieces
  • https://www.amazon.de/dp/B07GZJY4TM ARCTIC P14 PWM PST - PC Lüfter, 140 mm PWM PST - Static pressure optimised cheap fan, where i just cut off the PST connector (i dont need that) but u can use any 140mm x 25mm Fan u want (Be aware that noctua uses 124.5mm hole pattern insead of the stock 125mm). Top&Fanadapter part uses 125mm pattern # ~ 10€ 1 piece
  • https://www.amazon.de/dp/B0BYC26LR1 Gebildet Full Speed 12V Voltage Step-Up USB auf 3-Pin und 4-Pin - so u can just plug the fan to an usb port # ~ 7€ 2 pieces
  • 8x Fanscrews of your choice - 4 on top and 4 for FanAdapter part

Last words -

Yes, this case is a bit on the heavy side, but i didnt want it to fly away while the fan having a blast. Also this case will survive most of impacts or like if it falls of a shelf.

I also think about creating a horizontal mount for it so it would be possible to have it on top of a shelf and let the fan facing horizontal. (Or mounting it somewhere to a wall)
Let me know if some of you would like to see one.

Will print some more of em and gift it to my mother and parants in-law

PS - 

On the pic where u can see the fan i didnt put the FanAdapter part, so u can see the “pull air throu the filter” orientation of the fan. Just imagine there is the FanAdapter on it :D

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The author marked this model as their own original creation.

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