5 Things You Should Know Before Buying An Exhaust Fan

The level of comfort in an apartment isn’t only influenced by the environment or the ambient temperature. Sometimes you need to get rid of various obsessive odours or excessive humidity. This is especially true for the kitchen, utility rooms, and bathrooms. For this, household exhaust fans are designed, which are installed in the openings of the ventilation shafts.

Kitchen exhaust fans are an axial or centrifugal impeller, which is fixed on the axis of the electric motor and by its rapid rotation removes humid or polluted air from the room.

Here we mention in detail what you have to look for when choosing an exhaust fan.

Table of Content

Things To Consider While Buying an Exhaust Fan
Duct Opening Size
Housing
Room Volume
Noise Level
Additional Set of Functions
Dust and Moisture Resistance

Conclusion

Things To Consider While Buying an Exhaust Fan

Duct Opening Size

Before choosing an exhaust fan, it’s necessary to measure the opening of the air duct. For it, you can choose a fan with one of three standard sizes of the central part – 100, 120 or 150 mm. The fans can be installed either on a wall or in a false ceiling. It’s only necessary to clarify in the instructions of the fan its mounting depth. So, the device can be immersed in the hole without any difficulties.

Housing

Fan casings are usually made of plastic and environmentally friendly ABC plastic is chosen for the casing for expensive models, which doesn’t harm the environment. Sometimes premium models have brushed stainless steel bezels. They can be painted in different colours, which allows you to organically fit the fan into any interior.

Room Volume

The main parameter is the volume of the ventilated room and the degree of its humidity and pollution. It’s generally accepted that to calculate the required fan performance, the volume of the room must be multiplied by the air exchange rate. For a kitchen, this indicator is determined in the range from 10 to 15. The performance is indicated on the box and case of each fan. It’s better to choose a fan with a small margin compared to the calculated value.

Noise Level

If you choose a fan that is too powerful, its noise level will be much higher. It’ll be uncomfortable with a too noisy device at home. The noise level is specified in the accompanying documentation for any fan. Values not exceeding 40 dB are considered the most comfortable.

Additional Set of Functions

Exhaust fans can only have a timer and a hygrostat that detects the humidity in the room. A fan with a timer can turn off after a certain time or a person has left the room. This makes it possible to reliably remove residual moisture or odours.

Some fans are equipped with infrared motion sensors- they can detect the presence of people in the room at a distance of one to five meters. When they appear, the device starts automatically. There are fans that are equipped with a spring-loaded check valve that closes its flaps while the fan is off. It prevents the backflow of air from the ventilation system of the building.

Dust and Moisture Resistance

Sometimes fans are required for a large room with high levels of pollution and humidity. These can be saunas, baths, smoking rooms, offices. For them, a fan with a high class of dust and moisture protection is needed.

Conclusion

Conventional and duct exhaust fans are used in everyday life for all types of rooms with high humidity and the presence of foreign odours – kitchens, bathrooms, toilets, closets and basements. The most common today is the kitchen option. These devices have a compact body with a light outer cover that can be mounted in place of a standard exhaust outlet.

Almost all kitchen exhaust fans are fairly simple and easy-to-use devices that allow you to quickly and efficiently clean the air in the room. They don’t require special maintenance conditions even with regular contamination. It’s enough to periodically wipe the outer grill and clean the protective mesh every six months.