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Just about anything that filters the air will enable, nevertheless the pores really should go right down to no less than 0.five microns to capture many air-born contams like germs and fungal spores.​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​â€