Check the listing for details. Elipse P100 Odor Replacement Filter Pair. Condition: New. Listed at 30.48 USD. NEW, Elipse P100 Odor Replacement Filter, Pair, 864940, These filters have a special charcoal filter to remove odors, Minimum efficiency of 99.97" or higher at 0.3 microns particle size, The GVS Elipse P100 Replacement Nuisance Odor Filter is sold in pairs and is easy to replace. It utilizes a special charcoal layer to remove odors. Filter extends the life of the mask. A good rule of thumb is to replace anytime breathing becomes more difficult or you begin to smell odors. Use with GVS Elipse P100 Mask parts #865566 and #864939.The “P100” in the GVS Elipse P100 Mask name means this mask protects against all particulates, offering a minimum efficiency of 99.97% or higher at 0.3 microns particle size. It is made of hypoallergenic materials and has replaceable filters for dust (included with.