... anti-bacteria technology,mouldproof and germ- proof.7,Continue to work tfor 7-12 hoursFunctions:1.Deluxe design, good ... shut off when tank is empty,safe and reliable3easy to operate and maintain,simple installation4strong spray,instant release5transducer plastic ... effectively,extending the useful life6insider water box,fluorescnt lamp designHow to use it 1Fill water tank with tap water or purified ...