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Chlorine dioxide is generally used for disinfection. In hospitals (where contamination rate is high) for disinfecting the surfaces, 2000 mg/L of chlorine dioxide is used, and for spraying 1000 mg/L of chlorine dioxide is used to disinfect the air. And at airports 250 - 500 mg/L chlorine dioxide is used for sterilization. And vapors are not enough for ...

You could look at the open source nano-copper impregnated filter material which is said to self sterilize given enough time. In the study by Borkow et al (2007)7, a 2.5 cm filter was designed containing a 2 cm thick top layer of 500 mg of non-woven polypropylen impregnated with 5% copper oxide particles. This study had a control that was non-woven ...