The clean workshop is also called the dust free workshop,the clean room(Clean Room) and the  dust free room.
It refers to the removal of pollutants such  as particles,harmful air and bacteria in the air within a certain space,
and the indoor temperature,cleanliness,indoor pressure,air velocity and air distribution,noise and vibration,lighting
and static control.A specially designed room for a particular requirement.That is to say,
no matter how the external air conditions change,the room can maintain
the  characteristics of cleanliness,temperature and humidity and pressure.