With the smoke steaming/evaporation chamber where the flexible characteristic canopy is installed in part the fitting which is used (10) the portal device which does shape. The fitting (10), in order the canopy and the land (12) with to be located between, the land (12) it is possible to arrange on. The fitting (10) the sealing up surface above (22), in order to form the hermetic seal, the flexible characteristic canopy and it is contact possible. It is operation possible with various constitution, the assembly body which each one the 1st and 2nd entrance and includes the 1st and 2nd exit, decides the direction of the gases style generally. The 1st and 2nd gas entrance which can connect selectively with 1st and 2nd constitution and it possesses the 1st and 2nd gas exit, the gas extraction, processing, and recycling device operation the assembly body which possibly is connected. While operation connecting the smoke steaming/evaporation medicine introduction, extraction, absorption, and recycling device possibly, therefore, making that the smoke steaming/evaporation medicine recycles at the time of smoke steaming/evaporation possible, because of this, absorbing the smoke steaming/evaporation medicine at the time of smoke steaming/evaporation end, it makes the gas recycle which keeps the smoke steaming/evaporation medicine, the method smoke steaming/evaporation of doing the products inside the smoke steaming/evaporation chamber. The stage which provides the inlet and the air exit, through the inlet, in order for the substitution gas to flow to the part where stage and the chamber which supply the smoke steaming/evaporation medicine are selected, the stage which is controlled, and the stage which extracts the smoke steaming/evaporation medicine are included, the method smoke steaming/evaporation of doing the products inside the smoke steaming/evaporation chamber.一部に可とう性キャノピが組み込まれた煙蒸チャンバと共に使用される管継手(10)の形をしたポータル装置。管継手(10)は、キャノピと地面(12)との間に位置するように地面(12)上に配置することができる。管継手(10)上