Can be used with NIOSH P95 and P100 filters for oil and non-oil particles. For convenience and simplicity, some 3M respirator package assemblies are packaged with either P95 or P100 filters along with 501 filter retainers or 502 filter adapters. Low profile design provides wider field of vision and greater comfort while wearing goggles or glasses. Resealable storage bag helps keep respirator clean between uses