CultureGard autoclavable filters are made with 0.2 µm MWCO DynaFibre® membrane that permits the flow of culture medium while preventing the introduction of foreign microbials. These specialized filters have a large surface area for faster flow rates under lower pressures. Lower pressure during filtration reduces the risk of the membrane clogging or rupturing. The DynaFibre Membrane is hydrophilic so there is minimum hold-up volume. The combination of faster flow rates and minimum hold-up volume makes CultureGards the ideal filters for adding even the most viscous nutrients, like 6M glucose or media with serum, to hollow fiber or stirred tank bioreactors. Nutrients can be easily added to a culture without a syringe and septum.