Kaz Facial steam/saunas open pores and leave skin feeling soft, supple and hydrated. Steaming your face helps release impurities from beneath the skin's surface. The facial steam has been used since times immemorial to achieve younger-looking skin. Steaming can increase blood flow, help shed dead skin cells and loosen blackheads. Facial saunas typically heat steam to roughly 110 degrees Fahrenheit, an optimal temperature for facial steaming, and should not be used on irritated or acne-prone skin.