Usha Crisp air (200mm) 5 Blade Exhaust Fan (Pack of 4) Price starts at Rs. 4,719. The lowest price of Usha Crisp air (200mm) 5 Blade Exhaust Fan (Pack of 4) is at Flipkart. Usha Crisp air (200mm) 5 Blade Exhaust Fan (Pack of 4) is not available in other online stores. Usha Crisp air (200mm) 5 Blade Exhaust Fan (Pack of 4) is available in White colours across various online stores in India.