When it comes to choosing a kitchen vent fan, there are a few things you need to take into consideration. The size of your kitchen is going to be the biggest factor in determining which fan is right for you. If you have a small kitchen, then a basic wall-mounted fan should suffice. However, if you have a large kitchen, then you might want to consider getting a ceiling-mounted or island-mounted fan.
Another thing to keep in mind is the level of ventilation that you need. If your kitchen does not get very hot or steamy, then you can probably get away with a less powerful fan. However, if your kitchen gets quite warm and humid, then you will need a more powerful vent fan in order to keep the air quality good.
Finally, make sure to take into account the noise level of the vent fan that you choose. Some fans are quite loud, while others are much quieter. If noise is an issue for you, then make sure to pick out a quieter model.