Product Reviews

MCR Safety Swagger SR4 Series Safety Glasses Review (2026) review - specs, fit, pros and cons, NIOSH/OSHA compliance, and who it's for.

MCR Safety Swagger SR3 Series Safety Glasses Review (2026) - Verdict: 4.2/5. The SR3 is the subdued-finish model in the Swagger line for professional, client-facing, and supervisory environments where high-gloss mirror tints create voluntary compliance friction.

MCR Safety Swagger SR2 Series Safety Glasses Review (2026) review - specs, fit, pros and cons, NIOSH/OSHA compliance, and who it's for.

MCR Safety Swagger SR1 Series Safety Glasses Review (2026) review - specs, fit, pros and cons, NIOSH/OSHA compliance, and who it's for.

3M Secure Click HF-800SD Half Face Respirator Review (4.6/5) review - specs, fit, pros and cons, NIOSH/OSHA compliance, and who it's for.

3M Secure Click FF-800 Full Face Respirator Review (4.7/5) review - specs, fit, pros and cons, NIOSH/OSHA compliance, and who it's for.

Verdict: 4.2/5. The First Alert CO250 is a 9V battery CO alarm with a tamper-resistant locking cover that prevents unauthorized battery removal. Designed for rental properties, dormitories, and managed commercial facilities. UL 2034 listed, 7-year warranty.

Verdict: 3.9/5. The First Alert CO600 is an AC-only plug-in CO alarm with NO battery backup — it stops working during power outages when CO risk from generators is highest. Appropriate only for commercial settings with guaranteed backup power. UL 2034 listed.

Verdict: 4.0/5. The First Alert CO400 is the most affordable CO alarm in First Alert's lineup — 9V battery-powered, 85 dB, UL 2034. No display, no interconnect. Best for supplemental protection and smaller spaces. 5-year warranty.

Verdict: 4.1/5. The First Alert CO606 is a 120V plug-in CO alarm with 9V battery backup - a no-display, set-and-forget residential pick. Not an OSHA workplace CO monitor.

Verdict: 4.3/5. The First Alert CO410 is a battery CO alarm with a digital PPM display and peak memory - the pick when you want to see and track carbon-monoxide levels.

Verdict: 4.2/5. The First Alert GCO1 is a plug-in combination CO and explosive-gas (methane/propane) alarm - dual-sensor coverage for homes with gas appliances.