Radial Jet Fans

The need for car parking is now becoming a city-wide problem. City authorities and private entrepreneurs sensitive to this need began to build multi-level and closed parking lots. Ventilation has become necessary in parking lots built meters below ground level. Toxic carbon monoxide from car exhaust fumes poses a threat to human health. Rapid removal of polluted air is only possible with forced ventilation. Because conventional air ducted aspiration systems reduce the ceiling code and require more height, this results in the need to build fewer parking stories per unit height. As a result of research related to more effective use, jet fans were designed and put into use by users. Jet fans push polluted air towards the ventilation shaft. Air trapped in the inlet area of the ventilation shaft is discharged to the external environment without the use of air ducts.