Once the assembly of the frame is done we simply put in the filter with the assembled fan and funnel and its done. Pretty straightforward. The big question however is; does it actually work?

To answer this question I bought a Plantower PMS7003 sensor from aliexpress. Wrote some code (https://github.com/vandenbroucke/PlantowerCSVLogger) and tested it within a near perfectly sealed closet.

I gather a lot of dust from above my closets and sprayed it within the test cabin together with some aereosols (propane & butane). My goal target was around 100µ/m³ of PM2.5 to start the tests with.

The tests clearly indicate that the filter does in fact work and provides an air cleaning effect. You can also very clearly see when tapping the filter (video) after 3 days of usage that a lot of dust comes loose which indicates that it has actually done something.

After the tests were done inside the chamber the air within the test chamber was "cleaner" or less polluted then the air outside. We can clearly see the difference as we opened our test chamber after testing the filter.

Plantower PMS7003: