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Inline Exhaust Fans

Inline Exhaust Fans

(62 products)

At Vent Experts, we offer a wide range of inline exhaust fans designed to suit both residential and commercial ventilation needs across Australia. Whether you're looking to boost airflow in your bathroom, kitchen, grow room, or warehouse, our selection includes inline fans for both supply (intake) and extraction (exhaust) applications. These fans are engineered for high performance, low noise, and reliability—making them ideal for continuous use in a variety of environments.

Our range includes both AC and EC motor fans to suit different energy efficiency and control requirements. EC (Electronically Commutated) fans offer smart speed control, quieter operation, and lower energy consumption, making them a top choice for automated systems or energy-conscious users. We also stock inline fans with built-in thermostats and speed controllers, providing plug-and-play convenience for temperature-sensitive installations.

We proudly supply premium brands such as Fantech, Blauberg and Vortice, known for their durable construction, high airflow rates, and quiet operation. Whether you're installing a new ventilation system or upgrading an existing one, our fans are compatible with a wide variety of ducting and accessories, ensuring a clean and effective air exchange system.

Browse our full collection to find the right ventilation solution, including inline exhaust fans, inline intake fans, and complete kits for all airflow needs.

Inline Exhaust Fan FAQs

Measure your room (Length × Width × Height) to get the volume, then multiply by the air changes per hour (ACH) you need: Airflow (m³/h) = Room volume × ACH. Bathrooms usually need 10–20 ACH, laundries and kitchens 15–30 ACH, and grow tents even higher.

Air exchange (air changes per hour) is how many times the full room volume is replaced each hour. It’s critical for removing steam, smells and humidity, and for preventing mould and condensation.

AC fans use a traditional AC motor, are cheaper and simple to run. EC fans use a high-efficiency brushless EC motor with electronics, are quieter, more efficient, and allow much finer speed control.

Use only controllers made for AC motors, such as step/transformer controllers, specific AC speed controllers, or the built-in 2-speed function (if provided). The wrong controller can cause noise, poor performance or motor damage.

EC fans are best paired with 0–10V, PWM or dedicated EC/smart controllers. These give smooth, stepless speed control and often allow temperature, humidity or timer-based automation.

Choose AC if you want a budget-friendly fan with simple on/off or 2-speed control. Choose EC if you want top efficiency, quiet operation and precise or smart control, especially for 24/7 or climate-critical applications.

Yes. Long duct runs, tight bends, small duct sizes and filters all reduce airflow. Match the duct size to the fan, keep runs as short and straight as possible, and minimise sharp bends.

Yes, a correctly sized inline fan can exhaust from two or more rooms using junctions (Y/T pieces). Ensure the total room volume and required ACH match the fan capacity, and use dampers to balance airflow.

Most inline fans sit in the roof space or ceiling void, connected to an intake grille inside and ducted to an external vent. The air should always be discharged outside, not into the roof cavity.

Look for insulated or mixed-flow models, check the dBA noise rating, and consider an EC fan so you can run it at lower speeds. Using flexible connectors and anti-vibration mounts also helps reduce noise.

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