... on some public places,ect... Features of 1-2g/h portable ozone generator:1. Ozone output adjustable: 0%-100 ... purification, expedite human metabolism Multifunction Ozone generator: (Output 10-20g/h, YT-015) suit for water treatment, food fresh keeping, ... (or concentration regulation), light, switch components. More than 80g/h Ozone Generator Component: Ozone generator cell, ozone power, oil free ...