Exhaust Fan 4"/ 6"/ 8" inch Ventilating Ventilation Channnel Pipe Exhaust Air Extractor for Kitchen Bathroom Ventilator

【High-Performance Oblique Flow Exhaust Fan – Silent, Efficient & Multi-Purpose Ventilation Solution】 【Key Features & Benefits】【1️⃣ Advanced Oblique Flow Supercharging Technology】High-Density Oblique Blades (10 Blades): Precisely engineered to cut air evenly, reducing turbulence and airflow resistance. Result? 30% stronger wind pressure and 20% quieter operation vs. conventional fans.Efficient Airflow Acceleration: The unique blade curvature and specialized air duct design achieve high static pressure (up to 380Pa) for rapid ventilation without energy waste. 【2️⃣ Double Ball Bearing Motor】Durable & Low-Energy: Industrial-grade bearings ensure 50,000+ hours lifespan, with <0.13A current draw for energy savings.High-Speed (2600 RPM): Maintains consistent airflow even in dusty/humid environments. 【3️⃣ Ultra-Quiet Operation】Noise Levels as Low as 31dB(A): Quieter than a library whisper (40dB), thanks to aerodynamic blades and vibration-dampening housing.Anti-Resonance Air Duct: Eliminates humming for disturbance-free use in bedrooms or offices. 【4️⃣ Multi-Protection Design】IPX2 Waterproof: Safe for bathrooms, laundries, and high-humidity zones.Dust-Proof & Corrosion-Resistant: Reinforced casing withstands workshop dust, chemical fumes, and saltwater air.Formaldehyde Dilution: Circulates fresh air to reduce VOC concentration by 50% faster than standard fans. 【5️⃣ Smart Remote Control】2-Speed Adjustable (High/Low): Customize airflow with a button click (range: 15m).Wall-Mount or Handheld: Includes magnetic remote holder for convenience. 【6️⃣ Versatile Aluminum Ducting】Fire-Resistant & Bendable: Self-supporting 100% aluminum piping (3m/6m lengths) fits 4’’, 6’’, or 8’’ vents.Weatherproof & Lightweight: Hand-form elbows without tools; resists UV, rust, and fatigue. 4-Inch Turbocharged Exhaust FanModel: EF-4OBDimensions: 230×170×150mmVoltage/Frequency: 220-250V / 50HzAirflow: 220 m³/hWind Pressure: 150PaNoise: 31dB(A)Power: 60W (High) / 35W (Low)Speed: 2500 RPMCurrent: 0.13ANet Weight: 1.26kgCaliber: φ100mm6-Inch Turbocharged Exhaust FanModel: EF-6OBDimensions: 315×230×210mmAirflow: 540 m³/hWind Pressure: 300PaNoise: 38dB(A)Power: 120W (High) / 75W (Low)Speed: 2600 RPMCurrent: 0.22ANet Weight: 2.50kgCaliber: φ150mm8-Inch Turbocharged Exhaust FanModel: EF-8OBDimensions: 305×240×240mmAirflow: 900 m³/hWind Pressure: 380PaNoise: 43dB(A)Power: 180W (High) / 130W (Low)Speed: 2600 RPMCurrent: 0.53ANet Weight: 3.10kgCaliber: φ200mm