Does the Honda EU2200i (CO-Minder) have CO shutoff?

Last reviewed July 2026.

Yes — and the maker names the standard. Honda publishes the CO-Minder system's actual shutdown thresholds — an immediate stop at 600 ppm at the generator, or a 10-minute average of 400 ppm — and states its generator lineup meets the ANSI/PGMA G300-2023 safety and performance standard. PGMA G300 conformance is stated by the manufacturer (PGMA runs no public certification listing the way UL does), which is why this row sits one tier below a UL 2201 listing while being among the best-documented systems in the market. CPSC modeling put G300-compliant machines at ~87% of CO deaths averted.

The facts on file

Sources — read them yourself

• Honda — CO-MINDER system page (thresholds)
• Honda newsroom — lineup meets ANSI/PGMA G300-2023

How to read this

Two ANSI standards govern generator CO safety, and they are not equal claims: UL 2201 is third-party certified with a public listing (and per CPSC's modeling, machines built to it would avert nearly 100% of generator CO deaths); ANSI/PGMA G300 conformance is stated by the manufacturer (~87% in the same modeling). An advertised shutoff with no named standard is better than nothing and checkable against nothing. See the two standards compared — and remember a shutoff is not permission.

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Generator Score indexes CO-shutoff systems against the two ANSI standards and the public record (UL listings, manufacturer citations, CPSC data), with attribution — we test nothing and give no safety advice. No CO-shutoff system makes a generator safe to run indoors, in a garage, or near openings — CPSC's placement guidance (outdoors only, 20+ feet from the home, exhaust pointed away) is the operative document, and a shutoff is a backstop for mistakes, not permission to make them. If a maker publishes a standard citation or a listing appears, the page changes — the record wins.