Activated Carbon Foam Sponge Air Filter 120 mm cooler holder

Smoke removal filter for soldering.

10pcs Black Square Activated Carbon Foam Sponge Air Filter Pads Set For Smoke Absorber
https://www.banggood.com/10pcs-Black-Square-Activated-Carbon-Foam-Sponge-Air-Filter-Pads-Set-For-Smoke-Absorber-p-1113642.html