One could built UV-Lightmasks. A transparent hose, add UV-LEDS to sterilize the flowing air. Dry the air at the start with silica gel. All that is needed then is a battery. The silica gel can be heated every once in a…
One could built UV-Lightmasks. A transparent hose, add UV-LEDS to sterilize the flowing air. Dry the air at the start with silica gel. All that is needed then is a battery. The silica gel can be heated every once in a…