HEPA filter, old/new.

When I’m thinking about good (somewhere between low- and high) #tech, I’m also thinking HEPA. Randomly fabricated fibers that randomise and trick the movements of particles.

Air purifiers are part of the #solarpunk future. Not only to be equipped for #wildwires. #airpollution

Filters for the Smart Air Blast Mini purifiers, the old on the left is black/grey, quite evenly spread, and the left on the right is pure white. You see the different layers of the filters from above. &10;&10;This is a B Corp company that sells neat and no-bullshit devices. Still, too expensive for the masses &10;&10;