This top-seller (and literal lifesaver!) can be used at home too — either way, just pop in a couple of batteries.

The risk is even higher for families traveling in a recreational vehicle or camping in a cabin. Travel-sized portable carbon monoxide detectors are small enough to fit in a purse or backpack. Most are ...

Weaver, MD, Intermountain Health. He encourages travelers to buy a portable carbon monoxide alarm. They cost anywhere from $30 to $100, they’re small, and they don’t take up much room in your luggage.