Hello friends today I am going to write a review on usha air coolers.I bought an air cooler from this company with model number M634 from flipkart. This was the biggest mistake of my life that I trusted this company.The fan speed was fine but the parts used were made of cheap material and it stopped working after 2 months.The fan motor is not working and the water pump is no more pumping the water.The company is not answering to my emails.This company is scamming us.ease never buy their products.