S
Sertaiz
polyfill from a clean pillow stuffed into a can with holes punched in the end would make a good filter imo... works for growing mushrooms. that really need sterile environments .....
could be taped to a homeade mask of any material, a diving mask with a cut off nose, etc. food for thought if you need something. research it, but i figure if you get a secure fit around your face you have a chance. and wash everything well when back in secure area..... plenty of pillows around so check on this...
could be taped to a homeade mask of any material, a diving mask with a cut off nose, etc. food for thought if you need something. research it, but i figure if you get a secure fit around your face you have a chance. and wash everything well when back in secure area..... plenty of pillows around so check on this...