 insulation materials, nothing is lost and a draft doesn’t occur, unlike an exhaust fan that can’t exactly keep anything out.
When Should You Use An Inline Duct Fan? When Should You Use an Exhaust Fan?
Use an inline duct when you need to increase airflow rate and enhance the performance of a central HVAC unit. Also, this will help you achieve thermal balance throughout the house or building and ensure the work of your air conditioner or heater is felt in every room.
Smaller units are also used in spaces like bathrooms and kitchens. The point is, you should get this if your HVAC system needs a hand getting that air to distant parts of the house.
On the flip side, you should use an exhaust fan when air pollution and humidity are the troubles you have or you just need to maintain proper ventilation.
Beyond that, you’d be getting rid of mold and mildew and other forms of moist air troubles by expelling vapor along with indoor air and bringing in fresher air.
For emphasis, inline duct fans and exhaust fans are not the same. They are different in structure, design and function. Knowing what you really want is the key to getting the right product.
While it is impossible to tell which is better because of their clear differences, you’ll do yourself a great favor by doing a proper background check on any product you’re interested in, whether it’s an inline duct fan or an exhaust fan.