Nalgene Brand, long the leader in laboratory filtration, now offers even faster and cleaner filtration with the new MF75™ 0.1µm PES Filter unit product line. These new filter units feature an extremely clean, fast-flowing asymmetric 0.1µm PES membrane that provides ultraclean media filtration for mycoplasma and bacteria, outstanding throughput, and low protein binding of cell culture media and other solutions. The new 0.1µm membrane protects your sterilized media and cell cultures from contamination by mycoplasma or bacteria.