1-2g/h Portable Ozone Generator 1.With ozone generator cell ... .Ajustable O3 4.Warranty:1 year 1-2g/h Portable Ozone GeneratorDN-HY & DN-YT Series Ozone Generator ... some public places,ect... Features of 1-2g/h portable ozone generator:1. Ozone output adjustable: 0%-100%2 ... like house, hotel, Karaoke, swimming pool, club, public house, Internet bar, game center, bus station, supermarket, office buildings.2. ...