Product name: Pressure water filter pipette Filter fineness: 0.01μm Capacity: 1000 L Dimensions: 18.5*3 cm Material: ABS plastic, Fiber film , carbon fiber Use 0.01um Ultra filtration membrane cartridge, remove 99.9% harmful bacteria like coli-bacillus, legionella, salmonella. Keep your water safe.Physical filtration,no any chemical inside. Can be connected with water bag or bottles,it is convenient for many people. Usage Method: (1)Put the bottom of the water straw into the water,sip from the mouthpiece.When the water is too far to touches,connect and put the hose into the water. (2)Can connect with the water bag(owned), or bottle (owned),then press the bag or bottle to drink. (3)Use the hose to connect the reserve water bag(owned),filter the water by water pressure,it is suitable for multi-user. (4)can also choose to press filter, clockwise unscrew the pressurized water pipette, one hand holds the upper part, another hand holds the underneath part,then pull up and down,it's easy in pressure filtration. Matters needing attention： filter cleaning only with water backwash, not use detergent or disinfectant, so as not to cause two pollution. The water temperature exceeds 40 degrees Celsius (104 degrees Fahrenheit), should avoid use. Select clear water sources, use this product to filter, such as water is very turbid, can wait for impurities after precipitation filter.