Why should there be a ventilation pipe in the bathroom?

The main function of the snorkel is to exhaust odorous gases.

The ventilation pipe ensures that the pressure in the drainage pipe is communicated with the atmosphere, so that when draining, the lower pressure in the sewage pipe will not be too large to destroy the water seal of the low-level toilet, and only when the ventilation pipe is installed, the air that is squeezed in the sewage pipe can be discharged outside along the ventilation pipe to ensure the balance of the internal air pressure.

Snorkels can be used to remove toxic and harmful gases; It can also balance the air pressure to prevent the water seal from being damaged and facilitate drainage. The toilet is equipped with two pipes, the ventilation pipe and the sewage pipe, and the water and gas are diverted, each in its own way, so as to avoid collision phase infarction and odor escape to the low-level bathroom.

The bathroom is generally fully enclosed, and the smell of the bathroom is not very good, and there has been no ventilation tube for a long time, which can be imagined.

Because of the large steam in the winter bath, there is also a bath bomb, and the air is not circulated, which is easy to cause hypoxia and lead to coma.

The structure of the safe toilet is a separate load-bearing, so it is not possible to open too large windows (except for special buildings, such as villas, etc.), the lack of windows will lead to the lack of airflow, and even if there is no dangerous gas such as petroleum gas in the bathroom, the content of bacteria itself is also very large, and people are generally using the toilet is high temperature, and squatting posture, easy to contact bacteria and heavier gases close to the ground, so the installation of ventilation pipe is to actively create a flowing airflow, so that the substances in the air are always kept flowing and filtered.

Are you talking about the exhaust duct in the bathroom or the vent pipe in the drain pipe?

The bathroom is equipped with a special exhaust fan, or installed directly on the exterior window, or installed on the ceiling to connect the exhaust hose to the outside

If we talk about the ventilation pipe of the toilet drainage pipe, it is mainly to connect the drainage pipe with the atmosphere, avoid negative pressure in the pipeline during the drainage process, ensure the smooth drainage, and protect the water seal

Of course, it's for the convenience of exhausting.

The main function of the snorkel is to exhaust odorous gases.

The ventilation pipe ensures that the pressure inside the drainage pipe is connected with the atmosphere, so that when draining, the lower pressure in the sewage pipe will not be too large to destroy the water seal of the low-level toilet, and only when the ventilation pipe is installed, the squeezed air in the sewage pipe can be discharged outside along the ventilation pipe to ensure that the internal air pressure is balanced.

Snorkels can be used to remove toxic and harmful gases; It can also balance the air pressure to prevent the water seal from being damaged and facilitate drainage. The toilet is equipped with two pipes, the ventilation pipe and the sewage pipe, and the water and gas are diverted, each in its own way, so as to avoid collision phase infarction and odor escape to the low-level bathroom.