Patent ID: 7927400

Claim:
Filtration media comprising a filter media suitable for filtering fluid; and a static dissipative media layer, the static dissipative media layer having a surface resistivity level of between about 1×10 5 to 1×10 8 ohms/sq; the static dissipative media layer comprises a spun bonded fabric of non-conducting fibers and conducting fibers distributed with the non-conducting fibers, the spun bonded fabric has a weight of about 0.5-0.6 ounce per square yard, the conducting fibers comprise static dissipative fibers, and the ratio of static dissipative fibers to non-conducting fibers is 1:5 or more; and the static dissipative fibers have a surface resistivity level of between about 1×10 5 to 1×10 8 ohms/sq.