The Care Plus water filter is compact enough to fit in the palm of your hand, making it convenient for filtering water from freshwater sources such as lakes, rivers, or streams. Its membrane filter, with a pore size of 0.1 microns, acts as a physical barrier, effectively removing harmful bacteria, parasites, protozoa, and microplastics. The Care Plus Water Filter offers versatility in its usage, you can use the filter to drink directly from the natural water source or filter water using the included drinking bag or a standard PET bottle. Absolute hollow fibre mebrane filter One liter reusable TPU drinking bag Filter element with built-in nozzle Technical Features Filter pore size: 0.1 micron Capacity: up to 3,500L Flow rate: up to 1.7L per minute (when squeezed) Weight Filter: 75 g Drinking bag: 35 g