Jaali probably just acts like an air shield (i.e. the air thrower above doors in shopping stores). This way you still get fresh air except lower rate of heat tr

Jaali probably just acts like an air shield (i.e. the air thrower above doors in shopping stores). This way you still get fresh air except lower rate of heat transfer. We have this in our family home. Was not a fan of them because they collect all the dust but after reading this article they seem to have a very good use we never think about.