Evaporative cooling uses a tank of water which, as it evaporates, cools the air. You’ll need to refill this tank of water on occasion, but luckily, this model makes this a breeze. At the top of the unit is a spout which allows you to fill the tank without removing it.
The Air Cooler & Humidifier 8L would be suitable for indoor spaces, providing both air conditioning and humidity adjustment.