ABSTRACT
Sterilization by filtration is called the “cold” method of sterilization since it is the only method that does not rely on either elevated temperature or some other form of energy to destroy microorganisms. Sterile filtration, of course, does not destroy microbial life; rather, it removes or separates microbial life from the rest of the product. The first sterile filters used in the late 19th century were composed of asbestos. The technology has come a long way since.
