5 dicas essenciais para escolher o sistema de exaustão ideal para a sua cozinha

5 essential tips for choosing the ideal exhaust system for your kitchen

The exhaust system plays an essential role in both the aesthetics and functionality of the kitchen. It filters the air, eliminating grease and fumes, ensuring a cleaner environment free of unpleasant odors. However, choosing the ideal option can be challenging.

To help you make this decision, we've put together 5 essential tips for finding the ideal exhaust system and keeping your kitchen well-ventilated.

Most modern kitchens have an exhaust fan, an essential piece of equipment that ensures a continuous flow of fresh air, contributing to hygiene and air quality.

1. Main types of exhaustion

Exhaust systems are divided into three main categories: exhaust with outlet to the outside, recirculation exhaust and recirculation exhaust with natural AIR.

  • Exhaust with outlet to the outside
    This system completely removes smoke and odors by channeling air out of the kitchen through ducts. It's the most common air renewal solution, though it can be a bit louder and requires outdoor installation.

  • Recirculation exhaust
    In this method, fumes and odors are filtered by an activated carbon system before the purified air is returned to the environment. Because it doesn't require an outdoor outlet, installation is simpler. However, air purification is somewhat slower, as the air must pass through the filters repeatedly until it is completely clean.
    Furthermore, maintenance of this system is more frequent, with it being recommended to change the activated carbon filters every three months.

  • Recirculation exhaust with natural AIR technology
    Without the need to go outside, this system stands out for its high efficiency in eliminating odors, reducing them by up to 95%.
    Natural AIR technology removes viruses, bacteria, and allergens with 99.9% efficiency, ensuring a healthier environment. This technology lasts 10 years without requiring maintenance; only periodic cleaning of the metal filters is required.

2. Appropriate dimensions
The size of the exhaust fan or chimney must be compatible with the size of the stovetop or cooktop. To ensure efficient extraction, the width of the equipment must be equal to or greater than that of the cooktop. The ideal height for installing the most traditional exhaust is 65 cm above the stovetop or cooktop, or between 150 cm and 170 cm in the case of ceiling-mounted systems.

3. Extraction power
Choosing a model with the right power for your kitchen's size is essential to ensure efficient ventilation. To calculate the ideal power, use the following formula:
📌 m² x Height x 8 = m³/h
In other words, multiply the kitchen area by the ceiling height and the ideal number of air changes per hour (8). For ceiling extraction systems, an air flow of 8 cycles per hour is recommended.

4. Noise level
All exhaust models generate some noise, but you can minimize this impact by choosing a model with low decibel (dB) levels. For kitchens that also function as living spaces, a noise level below 65 dB is recommended, ensuring greater acoustic comfort.

5. Additional functions
More modern models offer additional features that make them more practical and efficient. When choosing your equipment, consider features such as:

  • Automatic shutdown / Timer: optimizes energy consumption;

  • Filter cleaning indicator: alerts you when cleaning is needed;

  • Perimeter suction: improves efficiency in capturing smoke and odors;

  • LED lighting: provides better visibility and a more welcoming environment.

Choosing the ideal exhaust fan for your kitchen not only improves air quality but also contributes to a more functional and modern space. Beyond design, it's important to evaluate the features and functionality that best suit your needs.

At Frasa, we offer a wide range of models that combine technology and design to suit all kitchen styles. From more traditional solutions to innovative options for contemporary kitchens, we have the perfect choice for you.

Explore our options at frasastore.com and find the best solution for your kitchen!

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