The fans of the CH-BOX HT series are used in systems where the extraction of fire smoke is required in environments such as underground parking, shopping centers, hospitals, schools, theaters, and industries. The CH-BOX HT series is designed and built in compliance with the European directive EN 12101-3, obtaining certification from a qualified independent entity. The CH-BOX HT fans are suitable for operation in the transport of clean air and non-dusty smoke, up to a maximum temperature of 120°C for continuous operation or in case of emergency at a temperature of 400°C for 120 minutes (F400). For installation outside the fire risk zone. The range consists of 10 models with impeller diameters from 350 to 700mm and air flow rates up to 16,000 m³/h. Maximum available pressures up to 1,000Pa.