As the Blaux Portable AC blows out 2.7m/s of refreshing air, it cools the way immediately. This device essentially has two holes. One of these blows unclean and warm wind out that way. Through the additional hole, gas enters at the device where it is cleaned thanks to the filter method. Some of the wind is cooled and sucked into the room while the unclean taste of it falls out through the other gap.

https://www.youtube.com/watch?v=rdgENs5kRbA