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[–] 12 points 3 months ago (3 children)

Didn't catalytic converters fix the carbon monoxide issue?

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  • [–] 34 points 3 months ago

    They lessen it, not eliminate it. No system is perfect. Its a significant improvement for overall environment and air quality. But in a confined space (like a garage) it'll still displace enough oxygen for a person to suffocate.

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