3M FF-302 Reusable Respiratory Full Face MaskFor a durable and comfortable mask that can protect against a wide range of respiratory hazards and serve as a face piece for a powered air respirator or as a negative pressure single filter mask, use 3M Full Facepiece Reusable Respirator FF 302 M L. This large sized mask is compatible with the 3M Versaflo TR 600E, 3M Versaflo TR 800E, 3M PF 602E+, PF 602E ASB powered air systems as well as the 3M DT Series of filters including particulate, gas and