汗沐蒸 (Hanmu Steam) is a Korean-style hanjeungmak sweat-steam house, founded in 2019 in Nanzi beside Yiqun Bridge, and the original branch of a two-house local chain. Its energy rooms have diatomaceous-earth walls, rose-salt brick on all four sides and bian-stone beds; sessions are by phone booking with prepayment, and the house supplies the steam clothes and towels. Twosevenths lists it as open daily 08:30 to 23:30.