Sauna booth, has doors or openings, several layers with or without air chambers, and thermal insulation provided inside or outside of booth, where booth is made from light material e.g. corrugated plastic, as one piece

摘要

The booth has several layers with or without air chambers, where booth is made from a light material such as corrugated plastic e.g. corrugated board as a piece. Thermal insulation is provided in inside or outside of the booth, and a door or other openings are provided in the booth. Surface resistance heaters are provided on inner surfaces of the booth, where the booth is electrically operated.