Features: Using the highest precision 0.01 micron hollow ultrafiltration membrane 99.9% filter out water harmful bacteria,to ensure the safety of drinking water. Blowing from the outlet can easily backwash the filter to achieve re-use of environmental protection. Pure physical filtration, compared to chemical sterilization more secure. With water bottles or beverage bottles and other connections to use, to facilitate the demand for drinking water. Three kinds of use: Straightsuction;Connecttoasoftkettleorwaterbottle;Connecttothewaterbag.