1 can take out the bottle 2.can adjust the spraying volume Automatic Hand Sterilizer,Hand Disinfector, ... out to wash or change new one2.can adjust the spray angle(0-60Degree),time,quota Voltage:AC110V-220VVolume:1500mlSize ... eliminate the pernicious influence2.wipe out pernicious baneful influence3. Adjust sprayer, adjust angle,adjust spraying time Hand sterilizer,auto hand disinfector, hand sanitizer ...