Specifications: 8 Inches (200mm) Opening size: 240*240mm panel size 290mm Wattage 30W Airflow : 450 (m3/h) Noise 39 (Db) Voltage 220v - 240v Rating IPX2 Gross Weight 1.3Kg package size：293*138*300mm 12 Inches ( 300mm) Opening size: 340*340mm panel size 390mm Wattage 40W Airflow : 1000 (m3/h) Noise 47 (Db) Voltage 220v- 240v Rating IPX2 Gross Weight 1.8Kg package size：395*140*400mm.
eBay
42/52 Inch New Type of Strong Wind Silent Industrial Retro Ceiling Fan, Dining Room Living Room Home Fan, No Photoelectric Fan
Aliexpress UK
Bullet Points: 1. Air throughput up to 198 m3/h. Equipped with ball bearings to ensure that the duct fan operates with low noise, about 31dB. Unlike noisy EC chimney duct fans, this fan is worth your money in the long run.
eBay
42/52 Inch New Silent Industrial Retro Ceiling Fan, DC Brushless Motor, Dining and Living Room Household, No Photoelectric Fan
Aliexpress UK
Specifications: 8 Inches (200mm) Opening size: 240*240mm panel size 290mm Wattage 30W Airflow : 450 (m3/h) Noise 39 (Db) Voltage 220v - 240v Rating IPX2 Gross Weight 1.3Kg package size：293*138*300mm 12 Inches ( 300mm) Opening size: 340*340mm panel size 390mm Wattage 40W Airflow : 1000 (m3/h) Noise 47 (Db) Voltage 220v- 240v Rating IPX2 Gross Weight 1.8Kg package size：395*140*400mm.
eBay
New Silent Industrial Retro Ceiling Fan, Dining Room, Living Room with Remote Control, Commercial Lightless Pendant Light
Aliexpress UK
Bullet Points: 1. Air throughput up to 198 m3/h. Equipped with ball bearings to ensure that the duct fan operates with low noise, about 31dB. Unlike noisy EC chimney duct fans, this fan is worth your money in the long run.
eBay
Singlecooled Air Conditioning Cooler 30L Large Water Tank Environmental Conditioning Silent Cooling Fan Industrial Water Chiller
Aliexpress UK
No need fan room. 1 Inline Duct Fan. Hon&Guan 4/6in Inline Duct Extractor Ventilation Vent Blower Exhaust Fan Booster. Hon&Guan 4" Grow Tent Ventilation Inline Duct Fan Carbon Filter Hydroponic Kit.
eBay
10/12/14/16inch Round speed kitchen exhaust fan Strong cylinder duct fan Silent axial flow industrial exhaust fan High power
Aliexpress UK
This powerful Hon&Guan fan extractor is perfect for use in hydroponic systems, gardens or patios. Available in 4" and 6" sizes, it effectively removes unwanted air while remaining silent and efficient.
eBay
10/12/14/16inch Round speed kitchen exhaust fan Strong cylinder duct fan Silent axial flow industrial exhaust fan High power
Aliexpress UK
Bullet Points: 1. Air throughput up to 198 m3/h. Equipped with ball bearings to ensure that the duct fan operates with low noise, about 31dB. Unlike noisy EC chimney duct fans, this fan is worth your money in the long run.
eBay
10/12/14/16inch Round speed kitchen exhaust fan Strong cylinder duct fan Silent axial flow industrial exhaust fan High power
Aliexpress UK
Bullet Points: 1. Air throughput up to 198 m3/h. Equipped with ball bearings to ensure that the duct fan operates with low noise, about 31dB. Unlike noisy EC chimney duct fans, this fan is worth your money in the long run.
eBay
220V AUX Air Conditioning Fan with No Blade, Home Use Silent Cooler, Industrial Style Oscillating Fan
Aliexpress UK