No visible welded seam on any of the 3 faces of the chimney * Touch screen control panel and UL-certified motor * Capable of ventless operation. No additional kit required! * High quality 304 stainless steel, charcoal carbon filters included. Features 3 speed settings & 2 LED lights * **Kitchen Bath Collection is the sole manufacturer and authorized dealer of this range hood. Any other seller claiming to sell this item is offering a counterfeit Kitchen Bath Collection range hood which will not be covered under our warranty and does not reflect our product reviews.**