This desert air cooler from USHA has a capacity of 100 liters. It consumes only 190 watts of electricity which is very less compared to other coolers. It is available in white color and because it consumes less energy you can also operate it on an inverter. It is portable too as it comes with caster wheels. It produces a very minimal amount of noise so it does not affect your sleep. The brand also provides 1 year of warranty with this product.
Abhishek