Answer:
①Width: Everybody cooks once in a while. In order to prevent the smell and haziness from spreading, your cooker hood should be at least as wide as the stove.
②Extraction or Recirculation: Extraction should be the preferred way, since it can remove the steam and odor from your kitchen directly. It’s suggested to install the carbon filter(s) when you choose the recirculation system.
③ Material: Basically, you can choose either painting or stainless steel, which is base on your preference.
④Airflow or Suction Power: It’s available from the low speed to the high one, which is decided by your cooking area and your preference.
⑤ Appearance: It’s recommended that the cooker hood design should match the style of your kitchen.