 and actually add a better inline filter into that and so what that does is if you put in a big air scrubber air filter now you're going to get a lot more of those particulate matters you could put in some of the scrubbers that will actually go through and go a hepa filter heated hepa filter there's a lot of different ways to do it depending on what you're trying to do in my house i put in with the carrier unit which is a their air filter so it has a carbon strip on the filter