Cooker hood: how to properly size it (airflow, width, height) without overcomplicating things

Choosing an efficient kitchen hood shouldn't be a headache. With three simple guidelines (airflow, width, and height), you can ensure optimal extraction, tolerable noise levels, and a healthy kitchen, without complicated formulas. Here's how to make the right choice quickly.

1. Simple calculation of flow rate

Airflow is the key element for a high-performance cooker hood.

• Multiply the volume of your kitchen (Length × Width × Height) by 10 to 15 to obtain the recommended range in m³/h.

• For an open kitchen or if you are using the recycling mode , choose the top of the shelf to ensure optimal extraction.

💡 Tip: Sufficient flow prevents lingering odors and condensation on furniture and walls.

2. Built-in vs. decorative: which type to choose?

The type of cooker hood depends on the space and style of your kitchen:

• Built-in / filter unit : discreet, perfect under a wall cabinet.

• Wall-mounted / decorative : visible and stylish, easy to install.

• Island : requires slightly greater width and flow to effectively capture smoke, especially if the cooking area is in the center.

Evacuation method

• Exhaust to the outside : better performance and quieter.

• Recycling with carbon filters : useful if no evacuation is possible, but requires regular maintenance to remain effective.

3. Noise and maintenance

• The higher the flow rate, the higher the noise . ✅ Tip: Use medium speed for most cooking and intensive speed only occasionally.

• Grease filters : to be cleaned monthly .

• Carbon filters (recycling): to be replaced according to the manufacturer's recommendations.

Regular maintenance ensures optimal performance and extended lifespan .

Key reference points

• Flow rate : simple calculation = volume × 10–15, adjust according to opening/recycling.

• Width : at least equal to your hob, wider for an island.

• Height : follow the recommendations (generally 65–75 cm above the plate).

• Noise and maintenance : favor medium speed and clean filters regularly.

At Servicadet-Stockel , bring the dimensions of your kitchen (L × W × H) and, if possible, a photo of the location, and we will recommend the ideal hood for you.

👉 Visit us in store for personalized support and a hood perfectly suited to your kitchen.