ATO Ozone Gas Detector — Handheld O3 Monitor, 0-50 ppm NRR 30 Not the right pick if nrr-25 As the MSA V Color:Hi-Viz Orange XPH30R

Not the right pick if maximum NRR is the primary goal — passive muffs like the 3M Peltor X5A (NRR 31) outperform it on raw attenuation

Kidde KN-COP-DP-B CO Alarm with Battery Backup

stretchy lanyard that reaches structural steel

MCR lists an ANSI/ISEA 138 impact rating for this model via the TPR back of hand

Lightweight at 15

ATO Ozone Gas Detector — Handheld O3 Monitor, 0 50 ppm NRR 30 Not the right pick if nrr 25 As the MSA V Color:Hi Viz Orange XPH30R Not the right pick if maximum NRR is the primary goal — passive muffs like the 3M Peltor X5A (NRR 31) outperform it on raw attenuation Kidde KN COP DP B CO Alarm with Battery Backup