Sauna

Sauna (lang. Finnish, Estonian). A room or building designed as a place to experience dry or wet heat sessions, or an establishment with one or more of these facilities.

The steam and high heat make the bathers perspire. A thermometer in a sauna is typically used to measure temperature; a hygrometer can be used to measure levels of humidity or steam.

Infrared therapy is often referred to as a type of sauna, but according to the Finnish sauna organizations, infrared is not a sauna.