--- product_id: 462249877 title: "Toolazy 4 Inch Inline Duct Fan 214 CFM, Vent Booster Exhaust Fan with 0-100% Variable Speed Controller, EC Motor 27 dBA Quiet Ventilation Fan for Grow Tent, HVAC, Basement, Bathroom, Crawl Space" brand: "toolazy" price: "฿7627" currency: THB in_stock: true reviews_count: 8 category: "Toolazy" url: https://www.desertcart.co.th/products/462249877-toolazy-4-inch-inline-duct-fan-214-cfm-vent-booster store_origin: TH region: Thailand --- # 214 CFM airflow power Ultra-quiet 27 dBA noise 0-100% variable speed control Toolazy 4 Inch Inline Duct Fan 214 CFM, Vent Booster Exhaust Fan with 0-100% Variable Speed Controller, EC Motor 27 dBA Quiet Ventilation Fan for Grow Tent, HVAC, Basement, Bathroom, Crawl Space **Brand:** toolazy **Price:** ฿7627 **Availability:** ✅ In Stock ## Summary > 💨 Boost your airflow, not your noise — breathe smarter, live better! ## Quick Answers - **What is this?** Toolazy 4 Inch Inline Duct Fan 214 CFM, Vent Booster Exhaust Fan with 0-100% Variable Speed Controller, EC Motor 27 dBA Quiet Ventilation Fan for Grow Tent, HVAC, Basement, Bathroom, Crawl Space by toolazy - **How much does it cost?** ฿7627 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/462249877-toolazy-4-inch-inline-duct-fan-214-cfm-vent-booster) ## Best For - toolazy enthusiasts ## Why This Product - Trusted toolazy brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Setup:** Complete kit with mounting hardware and long cords for flexible, hassle-free installation in any tight spot. - • **Energy-Smart EC Motor:** Save up to 40% on energy with a brushless motor running at 3000 RPM and only 30W power draw. - • **Whisper-Quiet Efficiency:** Operate at a near-silent 27 dBA, ensuring powerful airflow without disrupting your space. - • **Precision Airflow Mastery:** Tailor your environment with a smooth 0-100% speed dial for perfect ventilation control. - • **Versatile Ventilation Solution:** Ideal for grow tents, bathrooms, HVAC boost, basements, and crawl spaces—one fan, endless applications. ## Overview The Toolazy 4 Inch Inline Duct Fan delivers a robust 214 CFM airflow with whisper-quiet 27 dBA operation, powered by an energy-efficient EC motor consuming just 30W. Featuring a 0-100% variable speed controller and durable dual ball bearing design, it’s engineered for continuous use in grow tents, HVAC systems, bathrooms, and more. Easy to install with included hardware and compatible with standard 4-inch ductwork, this fan offers professional-grade ventilation with energy savings and silent performance. ## Description desertcart.com: Toolazy 4 Inch Inline Duct Fan 214 CFM, Vent Booster Exhaust Fan with 0-100% Variable Speed Controller, EC Motor 27 dBA Quiet Ventilation Fan for Grow Tent, HVAC, Basement, Bathroom, Crawl Space : Patio, Lawn & Garden Review: A very effect airflow boost for long duct runs - My friend remodeled his house resulting in the relocation of his washer & dryer to the very center of the building! A vertical run of 4" duct to the attic & 28' of horizontal duct to vent his dryer! Obviously we had to add a boost fan! His dryer accumulated water inside and the pipes soon plugged with lint. This duct fan rescued his ability to dry his laundry again! Honestly his house would have burned down if this fan hadn't been installed. The device itself is very basic...it's simple to install! The fan may be used without the remote speed adjustment/power switch if you are connecting it to a timer or switched outlet - simply unplug the speed controller and the fan will run at full speed when powered on. Coming up to speed does take a few seconds regardless of whether the speed controller is used or not. Four inch flexible duct fits easily over the intake & exhaust ports. I used a few wraps of vinyl tape on each flange so that the flexible duct would not slip off after it was clamped on. We used long nylon zip ties to hold the duct on the flange and it worked very well...an airtight and secure connection was accomplished with the addition of foil tape on the outside of the union. Airflow is very good too! The output of the fan is noticeably higher than the output of the clothes dryer. If the dryer is turned off and the fan remains running, the fan sucks hard enough that the air can be heard entering the sides of the dryer door when it is shut. The fan's baseplate is probably the simplest way to mount it but we suspended the fan from the rafters in a nylon rope sling to isolate the vibration. It's almost silent when operating in the attic, I cannot hear it in the house at all! This thing works well and I'd certainly buy it again. It's a great value for the price point. Two thumbs up! Review: Very Powerful. High cfm and high db at top speed. Variable control helps!! - I ordered the 8" unit to be used as a kitchen cooking hood exhaust and it arrived today. It appears to be very well made! I set it on a towel on the kitchen counter to check it out before proceeding with an installation which could take a day or two with custom fitting and climbing around in the attic, mounting the variable dial inside a nearby cabinet, wiring, etc. So I plug it in, attach the speed controller and away we go! This thing is extremely powerful.. I had to hold it back by hand because the force was tremendous! I think 831 cfm may be a bit too much for my exhaust hood application. I realized right away that turning it down to about 1/3 was probably sufficient and the sound DB level was tolerable. I tried unplugging and re-plugging it into the wall outlet and it started up just fine on the lowered speed setting so this will be how I use it, set it and then just switch it on and off. Still having the extra speed if ever it's needed, by mounting the control dial in a nearby cabinet or close to the exhaust hood. I have also ordered the 6" model at 405 cfm which may be better suited to my application. I will evaluate the smaller, quieter one when it arrives in 2 days, and return one of them. Bottom line: The 8" 831 cfm inline fan is incredible if you need that much air-flow!!! Attached video demonstrates the power and noise level and I only turned it up about 3/4 of the way because it moves across the counter if I go higher! Amazing power! ## Features - HIGH-PERFORMANCE 214 CFM INLINE DUCT FAN: The Toolazy 4 inch inline fan delivers reliable 214 CFM airflow for small to medium spaces up to 100 sq ft. The energy-efficient EC motor operates at a whisper-quiet 27 dBA, providing powerful air exchange without disrupting your environment. Ideal for grow tent ventilation, bathroom exhaust, and HVAC duct boosting - 0-100% VARIABLE SPEED CONTROLLER INCLUDED: Fine-tune your airflow with the included external knob speed controller. Adjust fan speed seamlessly from 0 to 100% with zero hum or electrical noise. The 8.2 ft controller cord provides flexible placement for grow rooms, crawl spaces, attic installations, or any hard-to-reach setup - VERSATILE EXHAUST FAN AND VENT BOOSTER: Use as an inline exhaust fan for odor removal, a duct booster fan for HVAC systems, or a fresh air intake fan for bathrooms, kitchens, and laundry rooms. The dual sealed ball bearing motor supports continuous 24/7 operation for dependable long-term performance in residential and light commercial applications - COMPLETE VENTILATION KIT - EASY SETUP: Package includes the 4 inch inline duct fan, 0-100% variable speed controller, 4.9 ft power cord, and mounting hardware. Connects directly to standard 4 inch round ductwork and is compatible with 4 inch carbon filters. Suitable for grow tents, attics, AV closets, server rooms, workshops, garages, and home ventilation systems. ETL Listed for safety - ENERGY-EFFICIENT EC MOTOR WITH PWM CONTROL: The advanced brushless EC motor consumes only 30W while delivering 3000 RPM, saving up to 40% on energy costs compared to traditional AC motors. Dual ball bearings are rated for extended continuous operation. The durable housing and quality components provide dependable service for air circulation, negative pressure, and exhaust ventilation applications ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B2L97C3V | | Air Flow Capacity | 214 Cubic Feet Per Minute | | Best Sellers Rank | #127,227 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #83 in Greenhouse Ventilation Equipment | | Brand Name | Toolazy | | Cooling Method | Air | | Customer Reviews | 4.6 4.6 out of 5 stars (98) | | Manufacturer | Toolazy | | Material Type | Acrylonitrile Butadiene Styrene | | Maximum Rotational Speed | 3000 RPM | | Noise Level | 27 Decibels | | Power Connector Type | 3-Pin | | Unit Count | 1.0 Count | | Voltage | 120 Volts | | Wattage | 30 watts | ## Product Details - **Air Flow Capacity:** 214 Cubic Feet Per Minute - **Brand:** Toolazy - **Cooling Method:** Air - **Manufacturer:** Toolazy - **Material:** Acrylonitrile Butadiene Styrene - **Maximum Rotational Speed:** 3000 RPM - **Noise Level:** 27 Decibels - **Power Connector Type:** 3-Pin - **Voltage:** 120 Volts - **Wattage:** 30 watts ## Images ![Toolazy 4 Inch Inline Duct Fan 214 CFM, Vent Booster Exhaust Fan with 0-100% Variable Speed Controller, EC Motor 27 dBA Quiet Ventilation Fan for Grow Tent, HVAC, Basement, Bathroom, Crawl Space - Image 1](https://m.media-amazon.com/images/I/61t12P8s+XL.jpg) ![Toolazy 4 Inch Inline Duct Fan 214 CFM, Vent Booster Exhaust Fan with 0-100% Variable Speed Controller, EC Motor 27 dBA Quiet Ventilation Fan for Grow Tent, HVAC, Basement, Bathroom, Crawl Space - Image 2](https://m.media-amazon.com/images/I/61+0-LjIpuL.jpg) ![Toolazy 4 Inch Inline Duct Fan 214 CFM, Vent Booster Exhaust Fan with 0-100% Variable Speed Controller, EC Motor 27 dBA Quiet Ventilation Fan for Grow Tent, HVAC, Basement, Bathroom, Crawl Space - Image 3](https://m.media-amazon.com/images/I/61bAjTyXfwL.jpg) ![Toolazy 4 Inch Inline Duct Fan 214 CFM, Vent Booster Exhaust Fan with 0-100% Variable Speed Controller, EC Motor 27 dBA Quiet Ventilation Fan for Grow Tent, HVAC, Basement, Bathroom, Crawl Space - Image 4](https://m.media-amazon.com/images/I/61OGMJxkHRL.jpg) ![Toolazy 4 Inch Inline Duct Fan 214 CFM, Vent Booster Exhaust Fan with 0-100% Variable Speed Controller, EC Motor 27 dBA Quiet Ventilation Fan for Grow Tent, HVAC, Basement, Bathroom, Crawl Space - Image 5](https://m.media-amazon.com/images/I/71feBH-5hiL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Is it quiet?** A: His Noise: 32 dBA, relatively quiet **Q: Hi. What the cost of a replacement blades for 4and 6 inch fan?** A: I'm very sorry, we haven't prepared any accessories for the fan blades, so we can't replace them. **Q: Warranty period?** A: Warranty period of 1 year **Q: How loud is this fan?** A: I can't answer in decibels but it is about the same noise level as any other 6" duct fans that I've used. Very tolerable, does not bother me. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A very effect airflow boost for long duct runs *by P***Z on January 21, 2023* My friend remodeled his house resulting in the relocation of his washer & dryer to the very center of the building! A vertical run of 4" duct to the attic & 28' of horizontal duct to vent his dryer! Obviously we had to add a boost fan! His dryer accumulated water inside and the pipes soon plugged with lint. This duct fan rescued his ability to dry his laundry again! Honestly his house would have burned down if this fan hadn't been installed. The device itself is very basic...it's simple to install! The fan may be used without the remote speed adjustment/power switch if you are connecting it to a timer or switched outlet - simply unplug the speed controller and the fan will run at full speed when powered on. Coming up to speed does take a few seconds regardless of whether the speed controller is used or not. Four inch flexible duct fits easily over the intake & exhaust ports. I used a few wraps of vinyl tape on each flange so that the flexible duct would not slip off after it was clamped on. We used long nylon zip ties to hold the duct on the flange and it worked very well...an airtight and secure connection was accomplished with the addition of foil tape on the outside of the union. Airflow is very good too! The output of the fan is noticeably higher than the output of the clothes dryer. If the dryer is turned off and the fan remains running, the fan sucks hard enough that the air can be heard entering the sides of the dryer door when it is shut. The fan's baseplate is probably the simplest way to mount it but we suspended the fan from the rafters in a nylon rope sling to isolate the vibration. It's almost silent when operating in the attic, I cannot hear it in the house at all! This thing works well and I'd certainly buy it again. It's a great value for the price point. Two thumbs up! ### ⭐⭐⭐⭐⭐ Very Powerful. High cfm and high db at top speed. Variable control helps!! *by D***S on September 12, 2025* I ordered the 8" unit to be used as a kitchen cooking hood exhaust and it arrived today. It appears to be very well made! I set it on a towel on the kitchen counter to check it out before proceeding with an installation which could take a day or two with custom fitting and climbing around in the attic, mounting the variable dial inside a nearby cabinet, wiring, etc. So I plug it in, attach the speed controller and away we go! This thing is extremely powerful.. I had to hold it back by hand because the force was tremendous! I think 831 cfm may be a bit too much for my exhaust hood application. I realized right away that turning it down to about 1/3 was probably sufficient and the sound DB level was tolerable. I tried unplugging and re-plugging it into the wall outlet and it started up just fine on the lowered speed setting so this will be how I use it, set it and then just switch it on and off. Still having the extra speed if ever it's needed, by mounting the control dial in a nearby cabinet or close to the exhaust hood. I have also ordered the 6" model at 405 cfm which may be better suited to my application. I will evaluate the smaller, quieter one when it arrives in 2 days, and return one of them. Bottom line: The 8" 831 cfm inline fan is incredible if you need that much air-flow!!! Attached video demonstrates the power and noise level and I only turned it up about 3/4 of the way because it moves across the counter if I go higher! Amazing power! ### ⭐⭐⭐⭐⭐ Worked great *by S***S on February 7, 2026* We had a cold bedroom at the end of a heating run and purchased this blower to help. I installed this in the basement and also purchased a plug in temperature controller. I put the temperature sensor in the duct and switched it on at 80 and off at 75. That way you are not blowing cold air when the furnace is not running. The variable speed controller allowed the temperature in the bedroom to be 4 degrees warmer running at only 50% speed! Noise was a little more than I expected. ## Frequently Bought Together - Toolazy Quiet 6" Inline Duct Fan 405 CFM Ventilation Exhaust Fan EC Motor and External 0-100% Variable Speed Controller for Heating Cooling Booster, Grow Tents, Hydroponics - AC Infinity Flexible 6-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust - HG Power 6 Inch Soffit Vent, Adjustable Air Vent Cover, ABS Round Ceiling Vent Covers for Living Room, Attic, Bathroom, Kitchen, Ventilation Use, White - Opening Size 5.66" --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/462249877-toolazy-4-inch-inline-duct-fan-214-cfm-vent-booster](https://www.desertcart.co.th/products/462249877-toolazy-4-inch-inline-duct-fan-214-cfm-vent-booster) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-24*