Your Artstor image groups were copied to Workspace. The Artstor website will be retired on Aug 1st. Journal AWWA Vol. 21, No. 10, OCTOBER, 1929 THE PURIFICATION OF WATER BY ULTRAVIOLET ...

A UV water purifier uses ultraviolet light to disinfect the water. As it flows through the purifier, the UV light zaps the harmful microorganisms, destroying their ability to cause illness.

When selecting a water purifier, it is very important ... UV Water Purifiers: UV purifiers use ultraviolet light to disinfect the bacteria, viruses and other pathogens in water.

For many photographers, a UV filter is an essential purchase, not necessarily for its advertised purpose of cutting UV light ... stains, water and oil. An ultra-thin brass frame ensures durability ...