India, June 1 -- An evaporative air cooler is an energy-efficient and eco-friendly cooling solution that uses water to lower air temperature. It works by drawing warm air through water-soaked cooling pads, where it gets cooled through evaporation before being circulated into the room. Unlike air conditioners, these coolers don't use refrigerants and work best in dry climates with good ventilation. They consume less electricity, making them ideal for budget-conscious households. Many models also come with features like variable speed settings, remote control, and water level indicators. Lightweight and easy to move, evaporative air coolers are perfect for both indoor and semi-outdoor spaces like patios or balconies during hot summer months...