Top 10 Best 4 Inch Duct Fan

A duct fan designed to boost airflow in HVAC systems and ventilate home spaces like attics and workshops.. Features a variable fan speed controller, enabling you to optimize airflow and noise level for any application.. Unibody die-cast construction with no welded seams reduces vibration while ensuring smoother airflow.. AC brushless motor with steel blades and lubricated bearings not suitable in restricted airflow applications.. Duct size 4 Dimensions 7.28 x 3.95 x 3.95 in. Airflow 106 CFM Noise 28 dBA Bearings Dual Ball.

Powerful Airflow This VIVOSUN powerful blower with a fan speed of 2500 RPM can create an airflow of 195 CFM It works efficiently in ventilating grow tents, transferring heat or cool rooms, circulating fresh air, as well as controlling proper humidity, temperature, and air quality for your grow area. Quiet Operation Fitted with a flow deflector that concentrates the fan stream and cuts turbulent kinetic energy to reduce sound output to just 30 dB, which does not have any harm to your health and will not disturb your work. Safety Protection The motor is ETL listed and features an automatic reset function to prevent overheating or other safety issues The electrical junction box is made from flame-retardant components for fireproofing. Simple Hookup The flanges on both the intake and exhaust ends are simple to assemble with the vent hose by locking tabs A cord of 5.9-feet long for hassle-free setup The housing, even the impeller and blades, are easy to detach for cleaning and maintenance. Wide Applications It can improve airflow to reduce humidity, block odors, and lower temperatures in grow rooms, basements, or kitchens Can be used with a variable speed controller bought separately.

Innovative design Composite fan blades and center hub which reduces noise and vibration. Fitted with dual flanges for a hassle-free hookup. 4 inch inline duct fan Air flow 190 CFM speed 2460 RPM wattage 74W voltage110V. Optimizing ventilation by targeting airflow to your plants. Less noise Delivering strong airflow with a disproportionate low sound profile by aerodynamic centrifugal impeller. Whether its indoors or outdoors, this powerful fan runs smoothly. Durable and stable Made of a high-quality, cold-rolled steel. The surface is treated with a plastic sealant to provide a strong resistance to corrosion. Quiet operation by quality components. Applicable Suitable for cooling lighting fixture. Ideal for managing hot and humid conditions in grow tents, bathrooms, kitchens, hydroponics, HVAC applications, commercial grow room. Max ambient temperature 176 80.

Durable The fan has a strong motor which features a permanently lubricated bearing that operates quietly and requires no maintenance. Compact But Efficient This duct fan is compact and lightweight enough to be installed in areas with little available space With a diameter of 4 inches, speed of 2930 RPM and 100 CFM air flow. Low Noise Superior balanced centrifugal impeller for long service life quiet operation A less than 30 dB noise level does not have any harm and will not disturb your work. Wide Applications You can have it in bathrooms, kitchens, workshops, basements, attics and etc, in order to boost airflow in HVAC systems Also, it can be used in grow rooms as intake fans or exhaust fan. Specifications Voltage 110120V, Power 14W Max Operating Temp of Motor is 130 266 Max Ambient Temp is 60 140 Note Please turn the fan off immediately if the blades get stuck by other objects.

High effective Transfer air to your target location in a quick and reasonably quiet way, with a fan speed of 2500 RPM for an air flow of 195 CFM. Low noise design Fitted with a flow deflector that concentrates the fan stream and cuts turbulent kinetic energy to reduce sound output to just 30 dB. Mini construction Lightweight, compact fan takes up minimal space, suitable for applications where larger fans just wont fit. Multifunction Perfect for grow tents, greenhouses, hydroponics, kitchens, bathrooms, basements, locker rooms, garage to reduce humidity, clear the air and lower temperatures in grow rooms. Easy to install Removable duct ends with locking tabs for easy removal and maintenance, 5.9 feet length power cord.

DIY Your HVAC System You can supply fresh air with one or more fans to DIY air circulation systems depending on the size of your space.. Widely Used Grow Tent Fan -- The 4 inch inline fan is widely used in homes,pets, offices, warehouses, restaurants, bars, shops, shopping malls, grow tents, greenhouses and other places where a lot of air is needed.. Large Airflow -- It is designed with high quality sleeve motor, quiet and service life more than 3 years, with rotational speed 2400 rmin, 76 CFM large airflow.. Over-heat Protection The motor comes with low operating temperature and low heat generation, the built-in temperature protection device, the contact point is disconnected when the motor overheats, which acts as a power failure protection. double protection is safer.. Easy to install 39 cable with plug, brown live wire, blue neutral wire, easy to install, please fix the fan to avoid noise due to looseness..

Effective Ventilation Quiet and efficient design with a fan speed of 2600 RPM for an air flow of 230 CFM. Powerful blower to move air to your target location for optimal ventilation. Low noise Equipped with a flow deflector that makes the fan airflow more concentrated and reduces the turbulence energy. Run at only 36.4 dB noise level to ensure the grow operation wont disturb your life. Simple installation Removable intake and exhaust ends with locking tabs for simple and easy hookup. Easy to install, quick to remove and convenient to maintain. The cable length is 5.9 feet and can be easily set. Premium design Lightweight and compact fan takes up minimal space and fits in any grow room. High-quality blades and efficient flow deflector increase airflow while realizing smooth, whisper-quiet operation. Wide applications Suitable for grow tent, greenhouse, basement workshops, bathroom or kitchen. Clean and freshen air. Keep environment humidity and temperature balanced.

Specification diameter 4inch Air flow 100 CFM Speed 2930 RPM Voltage 110120V Wattage 12W Noise level 40 db. Max operating temp of motor is 130 266 Max ambient temp is 60 140.. Application help boost airflow in HVAC heating, ventilation and air conditioning units to remove exhausts and odors from grow rooms, kitchens, bathrooms, workshops, basements, attics etc.. Premium ventilation quickly and efficiently move a vast amount of air Temperature control-cooling rooms that tend to accumulate too much heat.. Advantages superior balanced blades for long service life quiet operation Motor features a permanently lubricated bearing that operates quietly and requires no maintenance.. Note if any other materialsparticles get into the duct fan and get the blade stuck, users are to turn off the power immediately, clean it up, turn the power back on when handled properly..

Designed to ventilate hydroponic grow rooms, transfer heatingcooling, cool AV closets, and exhaust odors.. Dynamic temperature and humidity programming, with timers, grow cycles, scheduling, minimum speed.. Connect with our app via Bluetooth to access advance programs, alarms, notifications, and view climate data.. Mixed flow design combined with a PWM-controlled EC-motor for a truly quiet and energy efficient performance.. Duct Size 4 Dimensions 6.9 x 11.9 x 7.4 in. Airflow 205 CFM Noise 28 dBA Bearings Dual Ball.

Designed to quietly ventilate grow tents, exhaust odors, transfer heatingcooling to rooms, and cool AV closets.. Features the same build quality and innovations as the CLOUDLINE Series delivered in a value package.. Includes a wired 10-speed fan controller also compatible with all CLOUDLINE Series smart controllers.. Mixed flow design combined with an EC-powered motor for a truly quiet and energy efficient performance.. Duct Size 4 Dimensions 6.9 x 11.9 x 7.4 in. Airflow 165 CFM Noise 29 dBA Bearings Dual Ball.