Is it necessary to set up a mechanical exhaust system for the fan coil unit+fresh air system used in hotel rooms?

① General hotels do not exhaust air, and the common ventilation mode is fan tray+fresh air, or even a kind of heat recovery;

(2) If an exhaust system is to be added, the cost will increase greatly at first;

(3) What you said is not recommended for the public system in the bathroom. The exhaust system of the initial bathroom has been determined. If the room quantity is increased, the engineering design will be recalculated.

4 * * * With the system, if there is a problem with the valve, there will be an odor, and staying in a hotel is a pleasure. Such an "accident" will damage the image of the hotel;

⑤ Adding exhaust duct will reduce the "grade" of space and elevation;

⑥ Generally, the wind speed of the exhaust system is slightly higher, which will produce noise.