Eco-Friendly Cooling: The Science Behind Evaporative Air Coolers They might say no if you ask an older relative if they have heard of an evaporative cooler. However, possible opportunities are they would acknowledge the concept behind modern innovation. For example, before A/C or other cooler types existed, individuals would sleep outdoors on an evaluated deck to remain cool in the pleasant evening. They would typically hang wet sheets over the screens to cool the air. As… Read More »Evaporative Air Coolers – What Should You Know About Air Coolers?