ultraviolet bactericidal lamp with ozone is double sterilized by ultraviolet and ozone. even if it is blocked, ozone can also be

abstract art background bacteria bactericidal bacterium black cartoon design destruction device disinfection equipment flat fluorescent germicidal germs glow hand health home hospital icon illustration isolated kill lamp light logo medical microbe microorganism outline pandemic pictogram protect radiation sign silhouette sterilizer sun symbol tattoo technology ultraviolet vector violet virus water