Hushwind Clip-On Turbine Fan

26 decibels. Air at 20 feet per second. A clamp that actually grips a headrest, a cot rail or a stroller bar, and a guard small fingers cannot get through.

Battery, honestly: 12 hours on sleep speed, about 4 hours on full turbo. We publish both numbers because the usual claim in this category is one big number that only applies on the lowest setting.