The main takeaway of using a swamp cooler in summer is that it provides you with a comparatively cheap cooling solution as an alternative to the much more expensive to run air conditioning.
Let's face it, nobody looks forward to their electricity bill arriving more than owners of swamp coolers!
Air conditioning owners certainly do not!
For a cooler that can produce ample cool air at a fraction of the running cost of air conditioners, evaporative air coolers totally win hands down!
What's more, these cooling marvels work just as well outdoors as they do indoors.
Some say even better outdoors as they naturally chill the air without being hampered by increasing the humidity as they do indoors.
Just remember that when used indoors, evaporative coolers need a window to be cracked open to allow the excess moisture to escape.
Then you're good to go.
Below you'll see some graphical representations describing more on how swamp coolers work as well as some of the history behind their coming into being.