Levoit Core Mini 4-Stage Activated Carbon Filter

Levoit Core Mini-P Activated Carbon Filter - 

This is a replacement filter unit I designed for the Levoit Core Mini-P Air Purifier. It's a nice little air purifier, but the recommended filter replacement interval is every 4-6 months, and with filters costing ~$20-30, it can easily run over $75 per year. 

Features: 

• The exact dimensions as your old filter ( 4.8in x 5.8in x 3.7in(ID))

• Optimized for High-Flow - High-Filtration

• Adds additional functionality by helping to remove odors, smoke, fumes, and VOC's - which are common in 3D Printing

• Low-Cost Materials (~$6-8 per filter)

Materials: 

I sourced all of my materials locally, but I've added some links to help with finding things 

• Activated Carbon Filter Media - $7.99
• Pre-Filter Media (Electrostatic Filter Material) - ~$15.99
• Activated Carbon Pellets - $7.99

Printing: 

I designed everything to be printed at a 0.2mm Layer Height with a 0.4mm Nozzle, all settings are pre-set in my profiles

Any filament should suffice, I used Bambu Lab PLA Basic in Jade White 

Assembly:  

1. To assemble the Activated Charcoal Filter, begin by gluing the sealing ring into the top of the Filter Cover. The Sealing Ring will seat into the foam seal located at the bottom of the Air Purifier Motor/Fan. While that dries, we can assemble the rest of the Filter.

     2. Cut a ~122mm x ~420mm rectangle out of both the Pre-Filter Media and the Carbon Filter Media. Layer the Pre-Filter over the Carbon             Filter like so. This will be the Outer Filter. 

     3. Install the Outer Layered Filter Media with the Pre-Filter facing outwards. This is what you should be left with:

          TIP: Some filament clips can be used to temporarily hold the filter in place during installation. A screwdriver is also helpful to           guide the Filter Media where you want it to go. 

     4. Next, Cut a ~122mm x ~330mm rectangle out of both the Pre-Filter Media and the Carbon Filter Media, once again layering the                         Pre-filter over the Carbon Filter. This will be the Inner Filter 

          . The sizing can be slightly larger as excess can be removed at the end - aka… cuts don't have to be perfect :)

     5. Next, install the Inner Layered Filter Media in a similar fashion to the Outer Layer: Its now time to add your Carbon Pellets 

         TIP: Again, clips come in handy here :) ]

     6. Add the Activated Carbon Pellets until at the top, a funnel can make this easier 

     7. Now you can remove any clips you were using and install the Filter Cap. Make sure there are no leaks by giving the Filter a light shake            to ensure no Activated Carbon comes out. There is no need to glue this in place as the downward pressure from the Top of the Air                  Purifier will hold the Filter and Filter Cap in place; It's also necessary to replace the Carbon Media and mesh filters every few months

     8. Install the new Filter and you're all done! You've just successfully upgraded your Levoit Air Purifier for a fraction of the price that                      premium filters cost. Again, this is not a permanent filter, you'll still have to replace both the Filter Media and Carbon Pellets                          every few months to maintain its purification abilities.