A range hood is a device that mounts over the stove or range to help remove cooking smells and smoke from the kitchen as you cook on the range.
The range hoods job is to remove airborne grease, combustion products, fumes, smoke, heat, and steam from the air by evacuation of the air and filtration.
Although you can use a stove or range without a range hood the range hood is a good idea to keep your kitchen and homes air quality good.
A range hood keeps cooking exhaust, chemicals, and smoke out of your kitchen.
It improves your indoor air quality and streamlines your cooking experience.
Range hoods are made to improve the air quality of your kitchen after cooking.
They remove odors, grease, smoke, and fumes produced by using your stovetop.
The appliance sucks up the polluted air and filters it (as with a ductless model) or is carried to the exterior (with a ducted model).
Range hoods do not have to be vented to the outside.
But, ducted range hoods are almost always preferred over ductless hoods.
They remove all the smoke and cooking exhaust from your kitchen, while ductless hoods recirculate your cooking exhaust back into your kitchen.