Air conditioning is installed at the foot of the external wall, which can exhaust air, cool and heat. Air conditioning is also indispensable in restaurants.

If conditions permit, you can open the door a little wider. Install a fan on the interior wall or ceiling of the house to enhance the indoor air flow.

If there is a gap above the gate, install an exhaust fan here. Connect the kitchen with the lobby and use the kitchen exhaust system for ventilation.

In order to solve the problem completely, it is necessary to consider installing a ventilator that can both exhaust and supply air when designing.

Exhaust fan is a bridge for indoor and outdoor air exchange. If we don't install a ventilator to remove indoor moisture and odor and make the air fresh and smooth, our bathroom will have problems because of long-term humidity.

If there is no ventilator installed to remove the thick oil fume from the kitchen, our kitchen will be in chaos. Therefore, it is very important to install a ventilator in the room.

Here is a brief introduction to how to choose a ventilator:

1, brand: At present, there are many toilet exhaust fans on the market, but most of them are products of some small factories, so it is difficult to guarantee the product quality and after-sales service. If you have high requirements for long working hours and high working frequency of exhaust fans, it is recommended to buy exhaust fans of big brands.

2. Appearance: A high-quality exhaust fan usually has exquisite workmanship, straight seams and no scratches and bumps. In addition, the exhaust fan is a metal shell, so special attention should be paid to whether the paint surface of the shell is good, whether there is corrosion and rust spots.

3. Ventilation capacity: Exhaust fans with different sizes and powers can produce different exhaust volumes, so choose exhaust fans according to your actual needs. You can consult the designer or refer to the manufacturer's manual of the exhaust fan to buy it.

When selecting a ventilator, the following criteria can be used as test criteria:

1. The ventilator has a novel appearance, the color is in harmony with the color of the room, the plane has no warping appearance, the plastic is smooth and lubricated, the electroplated parts are bright without rust, and the blades can rotate normally.

2. After electrifying, the blades rotate smoothly, with no abnormal sound and large air volume. Two-way ventilator can be replaced freely. The motor temperature is not high and the noise is low. The fan with speed regulation function has obvious speed regulation, the condenser motor is not more than 65%, and the cover plate is not more than 80%.

Finally, I would like to remind you that if you want to do business well, remember to do a good job of ventilation.