You’ll find this range vent insert to work as efficiently ... The most common ductless range hood sizes are 30 inches and 36 inches. A model with a bigger size is better suited for large cooking ...

【FRIENDLY USER】:Suitable for ducted/ductless convertible range hood insert with charcoal filters. A simplified mounting system lets you quickly remove and wash dishwasher-safe baffle ...

It’s likely you’ll be looking for a specific type of range hood, whether it needs to fit an island, go under a cabinet or has to have a ductless ... typically 30 or 36 inches.