A:Answer Thank you for your inquiry. The filtered air outlet / top air vent can be cleaned of dust with a small, soft brush. If you wish to clean the inside of the air purifier, please remove filters and only use a dry, soft cloth to wipe it down. Do not wash filters. Please do not allow moisture to come in contact with
the main housing of the air purifier. For more information, please don't hesitate to contact us at 1-800-546-5637. We're here for you Monday to Friday from 9:00 am till 6:00 pm EST. You can also contact us through chat and email by clicking this link https://www.holmesproducts.com/customerservicecontact?cid=contactus. Our product specialists will be more than happy to help you.