
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 OV/acid gas cartridges for chlorine, hydrogen chloride, sulfur dioxide and solvent vapors. Common in water and wastewater treatment, pool chemicals and commercial cleaning.
Tell us quantity, sizes and delivery city. Volume pricing and custom branding are confirmed on a written quote.
NIOSH-approved OV/acid gas cartridges for chlorine, hydrogen chloride, sulfur dioxide and solvent vapors. Common in water and wastewater treatment, pool chemicals and commercial cleaning. • NIOSH OV + acid gas (chlorine, HCl, SO2, HF per label) protection • For water/wastewater chlorine handling, pool chemicals and cleaning chemicals • Available with integrated P100 for mists and particulates • Yellow color code (OV/AG) • Change-out schedule required Brands we quote: 3M · North · MSA. 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