How does over the range microwave vent?

Also asked, how does an over the range microwave vent work?

Exhaust Effectiveness An externally vented microwave mounted over a cooktop uses a fan to draw air through the microwave's vents and into an exhaust duct leading to the exterior of the building, so most of the moisture, heat, odor and particulate matter generated by cooking goes directly outside.

Likewise, how do you tell if your microwave is vented outside? If the microwave has intake vents on the bottom, check the cabinet above the microwave for a duct that goes to the outside of your home. That vent is sometimes attached to the back wall behind the microwave instead of going through the cabinet above the microwave if it is vented to the outside of your home.

Likewise, people ask, are microwave vents effective?

Ductless vent hoods, while not the best option, are still superior to OTR microwaves for venting kitchen fumes. Ductless vent hood filtration systems are generally more effective than the OTR microwaves, since the hoods are designed specifically to filter kitchen contaminants out of the air.

Do Over the range microwaves need to be vented outside?

Over-the-range microwaves have a light and fan built into the bottom of the appliance. After the smoke and steam are removed, the filtered fan vents the air outside your home or cleans it before releasing it back into the kitchen.