Compact / Small (less than 1 cu.ft.)

Great for most single-serving tasks

Mid/Full-Size (1.0 - 2.0 cu.ft.)

Standard capacity, perfect for most reheating

Extra-large (Greater than 2 cu.ft.)

Can handle defrosting or reheating oversized items

External

Sends smoke out external vent, requires ductwork

Convertible

Can remove smoke with or without ductwork

Recirculating

Pulls air through filter then vents it back inside

301-600 CFMs

Compatible with cooktops 30,000-60,000 BTUs

601 CFMs or Higher

Compatible with cooktops 60,000 BTUs or greater

Less than 300 CFMs

Compatible with cooktops less than 30,000 BTUs