We used Khaitan Cooler for 2 years and ultimately sold with loss. The reason behind this that it was not effective in room, if it was in the room and not throw air as claimed by the company. It creates humidity only in room.
Yes, if it is installed in window or door side then the flow of air remains chilled. Moreover, it cannot be installed in room is covers a huge portion of room.
The another problem with this product was fiber body which I thinks very light compare to other brand like symphony etc. Otherwise there were no problem with quality, speed and function of the coolers.