High airflow capacity Mobile Axial fans are designed for short time period ventilation needings within the bigger volume areas It is easily movable from a workplace to another one by means of its wheeled transporter. The Units are used for extraction of smoke, dust, fume, odour and similar gases. By possibility of reversible using ventilation is available. Extremely practical mobile units for extraction of vehicle exhaust fumes, welding smoke, very small dust and ventilation of boilers,container ventilation and similar many applications.