Inactivation of bacteria and viruses in water: passage of germicidal ultraviolet light through Teflon.

Teflon pipe as used in a water purification system transmitted germicidal ultraviolet (UV) light to inactivate Pseudomonas aeruginosa and poliovirus. The information is useful for animal care workers and others concerned with the prevention of microbial growth in water systems such as deionizers and distilled water. Of special significance is that there is a plastic that transmits UV light.