(3E22) PA14 PADS ARE SHIPPED IN BOXES CONTAINING 4-25 PAD VACUUM PACKED PACKAGES. MSA FIBERGLASS MEDIA IS CONSTRUCTED USING 14 GRAMS OF FIBERGLASS MEDIA PER SQUARE FOOT. THE FIBERS ARE FORMED INTO PROGRESSIVELY DENSER LAYERS. FIBERGLASS MEDIA IS IDEAL FOR CAPTURING PAINT OVER THE ENTIRE DEPTH OF THE MEDIA TO HOLD PAINT PARTICULATE AND NOT "SURFACE LOAD" LIKE MANY OVERSPRAY COLLECTORS. THE MEDIA IS GREEN AND HAS WHITE BACKING ON THE DOWNSTREAM SIDE. THIS MEDIA HAS 100% MEMORY WHEN COMPRESSED.