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A special chamber used to keep things moist, usually between 80 and 100 percent humidity.

Moist Chamber

A special chamber used to keep things moist, usually between 80 and 100 percent humidity.

"A home-made humidifier, a pail with a strip of cloth arranged for feeding the water up and letting it evaporate into the air." — Ritchie, 1918

Home-made humidifier

"A home-made humidifier, a pail with a strip of cloth arranged for feeding the water up and letting…