Application: Suitable for the ventilation in factory, hotel, high class building, etc.
Air requirement: The combustible, explosive and corrosive parts are impermissible in the air to be conveyed.
Impurity: Sticky matter is impermissible in the air, the density of dust and hard particles shall be lower than 150mg/m3.
Special construction: The special material applied for explosion/corrosion proof and high temperature type fan would be available then required.