SkyVac® Mighty Atom FilterSkyVac Atom Replacement Filter This filter is only compatible with the SkyVac Atom and will keep your machine performing at optimal level. We recommend changing your filter once or twice a year depending on how often it is used. The filter protects the inside of your machine from finer dust particles. Please choose from the drop down menu. You can purchase the filter only or the filter and the frame together. The filter attaches to the frame with a