If you have mold growing on your air conditioner vents, there are a few things you can do to clean them. The first step is to identify where the mold is growing. Once you know where it is, use a vacuum cleaner with a hose attachment to suck up all the mold and debris. You can also use a broom or mop to sweep up the mess. If the mold is on an exterior surface, you may also need to scrub it with a brush. Finally, pour some bleach or hydrogen peroxide into a spray bottle and mist it over the area where the mold was found. Let the mixture sit for several minutes before wiping it off with a cloth. ..