Abstract: A nonwoven filter media comprising: polyphenylene sulfide fibers, an inorganic fibers wherein said filter media exhibits physical properties taken from the group consisting of: (a) a clean gas concentration of less than 0.1 mg/m3, (b) an average cycle time of greater than 125 seconds when the media at 16.0 ounces per square yard is tested per ASTM-D6830-02, (c) residual pressure drop of less than 350 Pa as measured by ASTM-D6830-02; (d) weight of between 5.0 and 20.0 ounces per yard2 and a thickness between 0.020 and 0.100 inches, (e) air permeability of between 10 and 60 cubic feet per minute, (f) Mullen Burst strength of 225 lbs/inch2, (g) less than 50% strength loss according to a tensile test after being submerged in sulfuric acid according to test ASTM-D461-93, (h) total mass removal efficiency of 99.99% and (i) resists burn-through by a stainless steel ball bearings heated to 800° C.