
Fall Protection & Respiratory
4-Gas Calibration Gas - 50% LEL Methane / 18% O2 / 25 ppm H2S / 100 ppm CO, 34-116 L
- Calgaz · MSA · Industrial Scientific
- CH4 2.5% (50% LEL) / O2 18% / H2S 25 ppm / CO 100 ppm / N2 balance

NIOSH-approved reusable half mask with bayonet cartridge mount. Pair with P100, OV/P100 or multi-gas cartridges for painting, abatement, silica and chemical work.
Tell us quantity, sizes and delivery city. Volume pricing and custom branding are confirmed on a written quote.
NIOSH-approved reusable half mask with bayonet cartridge mount. Pair with P100, OV/P100 or multi-gas cartridges for painting, abatement, silica and chemical work. • NIOSH-approved when used with the matching filters and cartridges • Silicone (premium comfort) or TPE (value) facepiece • Bayonet mount for fast cartridge changes • Sizes S, M and L; fit-test before use per OSHA 1910.134 • Drop-down or cradle suspension • Order the matching cartridges and filters on replenishment Brands we quote: 3M · Moldex · North. Brand names are trademarks of their owners. Mays is an independent supplier, not an authorized agent of any brand; current manufacturer models are confirmed on your written quote.

Fall Protection & Respiratory

Fall Protection & Respiratory

Fall Protection & Respiratory

Fall Protection & Respiratory