The filter check/reset light on the HPA200 Air Purifier will remind you when it’s time to change your filter. If this is the first time you’re using a Honeywell Portable Air Purifier, you’ll want to ensure that you have removed the protective plastic wrap from the air cleaner’s filters. The noise may also be an… Continue reading Honeywell HEPA Home Air Purifier with Allergen Remover HPA104WMP