 gets maintained and if you can't do that you live in an apartment building you're not in control at least buy one of these HEPA filter systems these four stage HEPA filter systems it's worth it it's such a great investment turn that baby on and run it so that you have the cleanest air possible you'll be better off whether it's air conditioned or not because these poorly maintained air conditioners can lead to all kinds of things including migraines and headaches and dehydration poor quality of air