Ozone vacuum-ultraviolet (VUV) ozone generators, employ a light source that generates a narrow-band ultraviolet light, a subset of that produced by the Sun. The Sun's UV sustains the ozone layer in the stratosphere of Earth. UV ozone generators use ambient air for ozone production, no air prep systems are used (air dryer or oxygen concentrator), therefore these generators tend to be less expensive. However UV ozone generators usually produce ozone with a concentration of about 0.5% or lower which limits the potential ozone production rate. Another disadvantage of this method is that it requires the ambient air (oxygen) to be exposed
Dark Sun: Wake of the Ravager "PC Gamer UK"s Andy Butcher called the game a "missed opportunity", but he remarked that it was "still fun if you have the patience." According to GameSpy, ""Wake of the Ravager" sported enhanced graphics and larger character sprites as well as a number of huge, game-stopping bugs which ensured that for most gamers, The Dragon's lackey still waits to be defeated". Dark Sun: Wake of the Ravager Dark Sun: Wake of the Ravager is a role-playing video game developed and published by Strategic Simulations in 1994 for the MS-DOS operating system. It is the sequel to "". "Wake of the