When we talk about extraction rate for hoods, we refer to the amount of air that the hood can process in an hour. The extraction rate is generally expressed in cubic meters per hour (m³/h). To choose the right kitchen hood, it is essential to understand the necessary air extraction rate, which will mainly depend on the size of your room volume and your cooking style.
Recommended Air Extraction Rate
To calculate the ideal extraction rate, it is common to multiply the volume of the room by 10 or 15. For example, for a kitchen of 20m² with a ceiling height of 2.5 meters, the volume is 50 m³. The recommended extraction rate will therefore be between 500 and 750 m³/h.
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Different Types of Extraction
Recirculation Extraction
A recirculation hood works by filtering the air and returning it to the kitchen. It is equipped with active charcoal filters that capture odors and grease. This system is ideal if you cannot install a duct to the outside. However, it requires regular maintenance of the filters.
Exhaust Extraction
The exhaust hood expels the stale air to the outside via a duct. This method is effective for eliminating smoke and odors but requires a more complex installation. Choosing the right model will therefore depend on your infrastructure.
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The Importance of Hood Power
Power and Noise Level
The noise level is a key factor to consider. A powerful hood can be noisy, but some models are designed to reduce this unpleasant noise. Be sure to check this feature for optimal comfort while cooking.
Power and Filtration Efficiency
Good power ensures optimal grease filtration efficiency. A hood with an appropriate extraction rate will effectively eliminate grease and odors, promoting a healthy and pleasant environment.
Choosing the Right Extraction Rate for Your Hood
Understanding Your Extraction Needs
Before purchasing, assess the layout of your kitchen. If it is open or if you have a gas cooktop, a higher extraction rate may be necessary. Also, consider whether a professional restaurant hood could meet your specific needs.
Selecting the Right Model of Hood
There are different types of hoods: decorative hood, built-in, and many others. Consider criteria such as the type of charcoal filter, the ventilation technology, and the noise level. All these elements will ensure a harmonious integration into your kitchen.
Recommendations Table for Air Extraction Rate
| Kitchen Size (m²) | Room Volume (m³) | Recommended Extraction Rate (m³/h) | Recommended Type of Hood |
|---|---|---|---|
| 10 | 25 | 250-375 | Recirculation or exhaust |
| 20 | 50 | 500-750 | Recirculation with charcoal filter |
| 30 | 75 | 750-1125 | Exhaust with high extraction rate |