If you are looking for a chimney that make the filter cleaning process convenient, then Glen 6061 Auto Clean chimney is the best choice. It is a filter less chimney and has an external oil collector tray to collect the oil & grease particles. The 150W powerful Brush Less DC motor ensures that you get a powerful suction with low noise. The motor generates less heat and comes with 7 year warranty. The touch controls with motion sensor are easy to operate. The strong 1200 m3/h suction throws the smoke from the pans to outdoors and ensures that your kitchen is odor-free and the walls are clean of any grime. It has 2 eco-friendly power saving LED lights to brighten up the cooking area. About BLDC Motor & Advantages: Brushless DC Motor is made without the brushes with the result it has a longer life, it produces low heat, and it creates lower noise. Thus its very energy efficient as uses only as much power as required to perform the function.