Kaff Chimney Opec BGX90 is not a good product.The design is good and the buttons are working fine from the last 7 months.The material used is not good.Once Keeping a cooker in the showcase hit the chimney and the chimney cracked from a small hit.Its not much durable.The mats in the chimney needs to be cleaned once a week else the chimney won't work properly due to the sticky content in it .Cleaning it is also a hard task to perform. Service is average as I found the service man polite but not on time.
Better buy a Hindware Chimney.