Why DIY? Filter options Replaceable parts Quiet PC fans Built for your space Built for for your needs

Rectangular air filter with textured surface on a white background

Purifiers don't clean the air with magic. They circulate air through a filter. With our build-your-own boxes, you choose quiet PC fans and MERV filters to get powerful circulation, lower noise, and faster cleaning-made for your specific space and needs. Whether you are building a filter for allergies or to stop viral spread in your home, our boxes make the build quick, easy and something that will enhance the look of your space.


You can do this. We can help.

Select your desired filter size below to get started.

We'll build the box. You:

  • 1. Pick Your Fan

    Our boxes fit a variety of either 120mm or 140mm PC fans.

    Compatible Fan List 

  • 2. Pick your Filters

    Our boxes fit either 12x12, 20x20 or 20x30 HVAC filters. We recommend Filtrete Merv 13/14, but a variety of brands fit.

    Compatible Filter List 

  • 3. Pick your Power

    Whether you want it battery powered or plug n play, the choice is yours. Our cord slot lets you choose what works for you.

    Compatible Power Cords 
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