Usha Aeroclean Plus 4 Blade (300mm) Exhaust Fan (Pack of 6) Price starts at Rs. 11,739. The lowest price of Usha Aeroclean Plus 4 Blade (300mm) Exhaust Fan (Pack of 6) is at Flipkart. Usha Aeroclean Plus 4 Blade (300mm) Exhaust Fan (Pack of 6) is not available in other online stores. Usha Aeroclean Plus 4 Blade (300mm) Exhaust Fan (Pack of 6) is available in Grey colours across various online stores in India.