Exhaust machine is mainly used to exclude have a room or space in the harmful gases and harmful gases, and to maintain its internal negative pressure, in order to avoid contamination of other harmful gas diffusion room or space. Harmful gases inside the building refers to the entire environmental impact of air gases, such as toilet polluted air, water moisture between smoking smoke, fumes from the kitchen, garage and other automobile exhaust; industrial exhaust fan, commercial and civil, regardless of their size exhaust fan specifications, can not avoid a problem - air quality. Ventilation exhaust fan factory to ensure a comfortable working environment is often difficult and expensive to pay the price. Needless to say, the fresh air brought a smooth refreshing, uplifting feeling, but stagnant hot air brings it would cause lethargy, drowsiness, owned by the reason, the body can promote the flow of air around the body fluids evaporation, played the role of natural cooling, thus avoiding the discomfort due to the heat, odors, dust, fumes, etc. caused by poor ventilation. Exhaust fan size | Exhaust Fan | Rich ventilation equipment provided by Dezhou Plumper ventilation plant. Dezhou Plumper ventilation plant (www.frtfsb.com) (www.frtfsb.com) strong, credible, in Dezhou fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Plumper ventilation equipment into the brilliant and you work for a better future!