HALDEN Journal

Guides to a safer home.

Plain-English guides to carbon monoxide, home safety and getting the most from your monitor.

HALDEN CO monitor plugged into a wall socket in a terracotta living room with a wood burner
Carbon monoxide

Carbon monoxide levels explained: what's a safe ppm at home?

What CO levels in ppm mean at home, a CO levels chart, where carbon monoxide comes from, warning signs, and where to put a CO alarm or monitor.

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See the number. Not just a light.

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