The integrated ceiling of the bathroom is not equipped with a check valve, whether it is a bad smell

Updated on Bathroom 2024-08-09
2 answers
  1. Anonymous users2024-01-24

    Yes, it's easy to pour the smell.

    It is recommended to install a check valve.

  2. Anonymous users2024-01-23

    Generally, there is a public exhaust pipe, if there is already a check valve in the exhaust pipe, then there is no need to install it, if not, then it must be installed, otherwise the outside airflow will be poured into the room.

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