3M 7503 Large Silicone Ultimate Half Mask 7500 Series Reusable Respirator With Cool Flow Exhalation Valve, 4 Point Harness And Bayonet Connection, English, 15.34 fl. oz., Plastic, 5.8" x 10" x 7":
3M 7502 Silicone Half Mask Reusable Respirator | Delta Health and Safety
3M 7502 / 37082 & 2- 3M 60923 P1OO Organic Vapor/Acid Gas Respirator MEDIUM | eBay
3M 7502 Half Facepiece Reusable Respirator with Cool Flow Valve - Medium