3M Half Facepiece Reusable Respirator 7503 – Large, Silicone Faceseal, Cool Flow Valve
3M Half Facepiece Reusable Respirator 7503 – Large, Silicone Faceseal, Cool Flow Valve
The 3M Half Facepiece Reusable Respirator 7503 is the Large size of 3M's 7500 Series silicone half mask, a reusable facepiece that takes bayonet-mount 3M cartridges and filters for protection against dust, silica and, with the right cartridge, gases and vapors.
The facepiece is sold alone: cartridges or filters are bought separately and snap onto the two bayonet ports. For stone dust and silica, pair it with 3M Particulate Filter 2091, P100; where solvents, sealers or adhesives are also in the air, use 3M Multi Gas/Vapor Cartridge/Filter 60926, P100 instead. Medium faces should choose the 7502; the 6300 is 3M's lower-cost Large in the 6000 Series.
Key Features
- Size Large (3M 7503 / 37083); 7500 Series
- Soft silicone faceseal for comfort and a long service life
- 3M Cool Flow exhalation valve releases warm, moist exhaled breath and reduces heat build-up
- Dual-mode head harness with drop-down strap: the mask can hang at the neck without removing a hard hat
- Two bayonet ports accept 3M 2000, 5000 and 7000 Series filters and 6000 Series cartridges
- NIOSH-approved as a system with 3M cartridges and filters; assigned protection factor 10 (up to 10 times the OSHA PEL) when properly fit-tested
- Compatible with 3M dual-airline supplied-air systems
- One facepiece per pack, cartridges and filters not included
Fitment
Bayonet-mount 3M filters and cartridges sold in this catalogue: 3M Particulate Filter 2091, P100 (pair) for dust and silica; 3M Multi Gas/Vapor Cartridge/Filter 60926, P100 for combined particulate and gas/vapor hazards. Requires a fit test and a written respirator program under OSHA 1910.134.
What This Respirator Is Not For
Not for anyone whose fit test indicates Medium or Small (use the 3M 7502 Medium), and not usable without cartridges or filters attached. Not for atmospheres immediately dangerous to life or health or oxygen-deficient spaces. A half facepiece does not protect the eyes; add sealed goggles where dust or splash is present.
Who Is This For?
Fabricators, installers and shop staff with a Large face size who grind, cut and polish stone daily and need a reusable, fit-tested half mask for silica dust, or a mask that also takes gas/vapor cartridges for sealing and adhesive work.
Frequently Asked Questions
What size is the 7503?
Large. In the 7500 Series, 7501 is Small, 7502 Medium and 7503 Large. Size should be confirmed by fit test.
Does it come with filters?
No. The facepiece ships alone. Add a pair of bayonet filters or cartridges such as the 3M 2091 P100 filters or the 3M 60926 multi gas/vapor P100 cartridges.
What is the Cool Flow valve?
3M's exhalation valve design that opens easily to vent warm, moist breath downward, making the mask cooler and drier to wear.
Can I wear it with a hard hat?
Yes. The drop-down head harness lets the mask hang at the neck when not in use without removing the hard hat.
What is the difference between the 7503 and the 6300?
Both are Large half facepieces that take the same bayonet cartridges. The 7500 Series 7503 has a silicone faceseal, Cool Flow valve and drop-down harness; the 6000 Series 6300 is 3M's lighter, lower-cost elastomer mask.