answersLogoWhite

0

It is a type of ventilator head of classically hood shaped design but now available in various shapes and sleek designs. They are used on board ships in sanitary exhaust as well as for venting or ain induction purposes on ships , boats , automobiles. The term is derived from cowls in chimneys which increase draft and prevent blowback of smoke due to winds.

User Avatar

Wiki User

12y ago

What else can I help you with?