... water saving 30% than conventional shower at least2.full flow aerating shower with consistent spray pressureexcellent spa experience 3 ... air was inhaled continously, this cound speed up the water flow 30% -50% fast, make 30%-50%more consistant ... pressure. at the same time,because of the water flow mixing with 50% air , this can already save ... about more details ,thanks ! top quality low flow shower head