 Yeah, now let's move on to the range hood filter. These filters collect grease and smoke and cooking odors, and most of them can be easily removed, cleaned, and then reinstalled. And if you've got a metal filter, you can even run that through the dishwasher. Now, there's actually a filter in your plumbing system that a lot of folks forget about, and it is your faucet aerators. These are very small filters that are screwed in to the faucet tip. Over time, they will collect some debris that's circulating through your water, so you need to unscrew them very carefully.