Household Exhaust Fan Super Powerful Ventilator Bathroom Duct Fan Kitchen Range Hood Exhaust Fan High Pressure Fan

FEATURE: reduce temperature and stuffy environment by absorb hot air in the room to outside then replace with new air reduce humidity to control excess moisture remove and eliminate unpleasant odors and smell in the room reduce air contamination improve air circulation Specification: 4 inches Power: 50W Standard air volume: 300m³/h Sound: 48db Wind pressure: 182Pa Speed: 2430/min 6 inches Power: 75W Standard air volume: 420m³/h Sound: 58db Wind pressure: 264Pa Speed: 2550r/min 8 inches Power: 160W Standard air volume: 780m³/h Sound: 67 Wind pressure: 343Pa Speed: 2700r/min