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
Masters of the Sun Vol. 1 for a moment in which will.i.am pulled out his phone mid-performance, prompting an apologetic response from will.i.am and Taboo on Twitter. The group will embark on the Masters of the Sun Tour to promote the album, performing fourteen shows across Europe in October and November 2018. A second leg of the tour in Asia will occur in 2019. British electronic musician Lone, along with his record label R&S, publicly accused The Black Eyed Peas of illegally sampling his 2013 track "Airglow Fires" for "Masters of the Sun"s fifth track, "Constant". R&S alleged that neither the band or Interscope Records contacted