We participate in the supply, installation and maintenance of mechanical ventilation and air-conditioning (MVAC) systems to facilitate comfortable and environmentally friendly operation of buildings based on the general specifications provided by the construction consultants employed by the project employers. During the design process, we have to assess the possible factors, such as building location indoor area and the system operation cost efficiency. We will then transform the design into practical application by supervising and monitoring the installation of ventilation system for controlling air quality, indoor humidity and temperature inside the building. In principle, we aim to provide solution for reliable, energy efficient and user friendly MVAC installation. We also need to ensure the ventilation system complies with relevant standards generally required in Hong Kong, namely the Building (Ventilation System) Regulations.