Silver is one of the oldest known antimicrobial agents and has been proven effective against more than 650 strains of bacteria. Foss Manufacturing Co Inc has Incorporated silver In an Innovative antimicrobial bi-component fibre technology called Flosshield(R) Antimicrobial Technology(TM), which is said to effectively guard against the growth of a broad spectrum of bacteria, without affecting the propel-ties of the treated material. This new technology may well offer many benefits to filter media designed for use in air and liquid filtration applications.