Membrane Solutions Water Filter Straw II BPA Free. 999999percent of waterborne bacteria 99.9999percent of micro plastic and 99.999percent protozoan cysts. Remove particles as small as 0.1 micron. BPA free materials. Cord lanyard. Specifications for Membrane Solutions Water Filter Straw II: Manufacturer: Membrane Solutions Color: Blue Age Group: Adults Package Contents: Membrane Solutions Water Filter Straw II Membrane Solutions OESF011: Water Filter Straw II BPA Free