A deep fryer with an odor filter reduces the frying odors. As a result, your kitchen or living room won't smell like the frying odors as much during and after frying. There are 2 different types of odor filters, namely a replaceable and a permanent odor filter. If you chose a deep fryer with a replaceable odor filter, keep in mind that you have to replace the odor filter after about 35 uses. That way, you can be sure your deep fryer takes optimal care of the odors.