#FYI #heat #heatwawe #wetbulbtemperature (contd.2/3)
...Keep in mind you need to have at least a ventilation opening to lead the hot air exhaust pipe outside (e.g. a cat flap).

There are much cheaper evaporation coolers, which may be useful in extremely arid regions, but in normal humidity conditions may quickly cause mold.

A no-cost alternative in dry heat could be to hang a water soaked bed sheet in the room, in front of a ventilator if available. (contd.)
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