[Problems of disinfection of breathing apparatus (author's transl)]

Report on the problems of disinfection of breathing apparatus. As a new means of avoiding bacterial contamination of the humidified and warmed inhaled gas mixture for 48 hours Rivanol in solution 1:1000-1:5000 is recommended as humidifier. For this, however, only those breathing systems are suited which work on the evaporation principle, not on atomizers or spraying. The good bacteriologic results are explained by the certain inhibition of bacteria by Rivanol in the humidifying fluid. It is understood that--in addition--there must be regular (every 24 hours) disinfection of tubes and the valves which ought to be as simple as possible. As humidifying fluid only sterile water, possibly fresh tap water, are recommended.