Abstract: A clean room facility which prevents an insect from entering a clean room at a low cost is provided. The clean room facility includes: a finish sheet that is provided on an upper side of a floor base of the clean room and forms a floor surface of the clean room; and a base sheet that is provided between the floor base and the finish sheet. The base sheet: is provided also under a panel member which serves as a side wall of the clean room; and is extended to a vicinity of an exterior wall of a building including the clean room.

Abstract: Provided is a user-friendly air conditioning system. An air conditioning system comprises: a fan filter unit that has an air supply fan for supplying air to a clean room; and a fan filter unit that has an air return fan for returning or the like of air from the clean room. The air conditioning system further comprises: a pressure sensor that is installed in the clean room; and a control device that controls one of the air supply fan and the air return fan on the basis of the detection value of the pressure sensor, and controls the other fan at a constant speed. It is possible to switch between controlling one of the air supply fan and the air return fan on the basis of the detection value of the pressure sensor and the other fan at a constant speed.

Abstract: Provided is a clean booth in an assembled state, including: a frame; a wall portion that is provided on the frame and forms an internal space; a first unit that is provided on the wall portion and includes a first fan that supplies air to the internal space via a first filter; and a second unit that is provided on the wall portion and includes a second fan that exhausts the air in the internal space.

Abstract: Provided is a clean booth in an assembled state, including: a frame; a wall portion that is provided on the frame and forms an internal space; a first unit that is provided on the wall portion and includes a first fan that supplies air to the internal space via a first filter; and a second unit that is provided on the wall portion and includes a second fan that exhausts the air in the internal space.