India, April 30 -- Temperatures are crossing 40 degree Celsius in northern part of the country. Amid the ongoing heatwave conditions, a standard ceiling fan does little more than circulate hot air. If you have a large living room or an open-plan hall and you want to cool it down without getting an eye-watering electricity bill of an AC, a desert cooler is your best friend. Unlike window coolers and personal coolers, desert coolers are heavy-duty machines that are designed for high-volume airflow, which makes them ideal for large spaces and arid climates.

That said, getting a desert cooler isn't as simple as getting a cooler with a decent capacity. There are factors like air delivery and inverter compatibility that you need to factor in w...