Air diffuser is also called cabin unit, it is a kind of terminal unit of marine air conditioning system.
Ceilding Air Diffuser is mainly composed of static pressure box, air volume regulator and diffuser. The air volume has the function of primary air volume limit and secondary air volume regulation. The primary limit mechanism of transmission is used to balance the air volume, so that the air volume distribution reaches the design value. The Secondary air volume is manually adjusted by the crew's own comfort level.