28 results filtered with: Water - Purification
- Pictures
- Online
A boy taking a glass of water from a tap fitted with a device to purify water with ozone; advertising the Otto procedure of water purification by electricity. Colour lithograph by Goldstein, 1930.
Goldstein (Designer), active approximately 1930.Date: [1930?]Reference: 676369i- Ephemera
- Online
Shouldn't the quality of your pure water be a constant rather than a variable? / Millipore Corporation.
Millipore Corporation.Date: 1996- Books
- Online
Air and water : their impurities and purification / by Henry Bollman Condy.
Condy, Henry Bollman.Date: 1862