Smoke ventilation fans are mounted in general ventilation systems. There are four standard sizes of fan: 063; 080; 100; 125. Fan impeller blades can be configured at different angles. It provides a wide selection of operation modes for each impeller diameter.
Fans are designed for operation in temperate (У), tropical (Т), or moderately cold (УХЛ) location climate category 2 as per GOST 15150. Fan operation in conditions of location category 1 possible providing that the fan motor is protected against direct sunlight and weather.