Danby 1.4 cu. ft. Over-the-Range Microwave Oven DOM014401G1With its 3 way venting system, you can ensure that any smoke from the range is dealt with properly. Top, Rear and recirculating 2 speed, 300 CFM vent fan comes with pre installed charcoal filters. From time to time we get distracted and forget the food in the oven, this unit will automatically begin to vent any smoke it detects, should you forget to turn the fan on. Its not just a fantastic venting system, this Microwave comes loaded with features.