The steam thermal mask (100) includes a mask main body (101) that covers the wearer's nose and mouth when worn, and a pair of ear hooks (102) provided at the left and right ends of the mask main body (101), A steam thermal mask (100) comprising a mask (110) provided with a water vapor generator (120) on the mask main body (101), and the wearer side surface of the mask main body (101) The ratio of the area occupied by the steam generator (120) to the entire area is 30% or more and 80% or less, and the steam generator (120) accommodates the steam generator inside, and the steam generator (120 ) Comprises a first sheet on the surface of the water vapor generating part on the wearer side and a second sheet on the surface opposite to the surface on the wearer side of the water vapor generating part, and the air permeability of the first sheet is 7000 seconds / 100ml or less Air permeability of the second sheet is 8000 seconds / 100ml greater.蒸気温熱マスク（１００）は、着用時に着用者の鼻と口とを覆うマスク本体部（１０１）と、マスク本体部（１０１）の左右両端に設けられた一対の耳掛け部（１０２）と、を備えたマスク（１１０）と、マスク本体部（１０１）に水蒸気発生体（１２０）と、を備えた蒸気温熱マスク（１００）であって、マスク本体部（１０１）の前記着用者側の面全体の面積に対する、水蒸気発生体（１２０）の占める面積の割合が３０％以上８０％以下であり、水蒸気発生体（１２０）は内部に水蒸気発生部を収容するものであり、水蒸気発生体（１２０）は、前記水蒸気発生部の前記着用者側の面に第１シート、前記水蒸気発生部の着用者側の前記面と反対側の面に第２シートを備え、前記第１シートの通気度が７０００秒／１００ｍｌ以下であり、前記第２シートの通気度が８０００秒／１００ｍｌ超である。
