Soundproof room within a room (instead of soundproof cabin)

The ventilation design of the room in the room is designed according to the latest new laws in Hong Kong after 2023.

The design of the new ventilation system, the air exchange rate is 41 times per hour, which meets the following standards:

1. Buildings DepartmentBuildings Ordinance (Chapter 123) CEPAS minimum 5 hourly requirement

2.