India has a summer season from the month of March to May, and although geographically it’s a peninsular country, it also has vast terrain that faces hot and dry climatic regions. In summer, the maximum ambient temperatures are as high as 40-45 oC during the day and 20-30 oC at night. Considering the climatic conditions, evaporative coolers are the best suited for the region. It works on the principle of evaporative cooling, hence the name. Desert coolers are most efficient when assembled outside the house, as the evaporation is fast, leading to more cooling. However, there are humidity issues when assembled inside the house. The cooler assembled outside the house has to experience major shifts in temperature, with constant contact in water; metal desert coolers in this scenario tend to get rusted over time. However, its usage is during the summer season only, and during the off season it needs to be stored.