The M 407 Assembly includes a M 927 Premium Visor, M 444 Inner Collar, and M 447 Flame Resistant Outer Shroud. The M 927 visor is made of coated polycarbonate. The M 447 shroud is made of Nomex® flame resistant fibers.
3M™ 17323, Versaflo™ Respiratory Helmet Assembly M-407, with Premium Visor and Flame Resistant Shroud, 7000002395, 1 EA/Case
$860.15
Factory Stock, 7-10 Lead Time.
For respiratory, eye, face and head protection with additional neck and shoulder coverage. Features a flame resistant shroud for applications with hot particles.

3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box 
