Safety Mask Safety Mask 3M 8812-Dust Mist Valve Mask Posted on December 1, 2012 by admin 3M Dust/Mist Valve Mask (Box of 10) 8812 The 3M 8812 provides these additional features over the 8710: Cool flow valve for greater comfort Maximises user comfort Improved communication Complies to AS/NZS 1716 Sold in packs of 10 admin Model 7501, 9-gallon capacity gravity operated portable Dust Respirator DR-33H