This product definitely works and works well. However, as other reviewers have pointed out, as soon as you lift the screen off the pot or pan the smell will quickly spread. I would definitely recommend them for those of us living in apartments and have no outside venting for the stove.
I bought them as stocking stuffers for my adult children. We all love them and expecially the fact that the handle folds down for easier storage. Definitely keeps the odors down and very easy to clean.
I highly recommend the Pedrini splatter screens The two splatter screens are very good for different size pans. They truly prevent splatter when I am frying foods in oil or butter. They are easy to clean in the dishwasher. The price was good too.