I bought this Ionizer to use with a room size free standing air floor filter. The ionizer needs an AC outlet cord. I soldered and shrink wrapped a spare AC cord. I also wrapped the soldered joints and wire in electrical tape. I then took small cable ties and I secured the ionizer to the back of the room size free standing air floor filter. The ions are sucked into the free standing air floor filter and distributed by its fan into the room and house. I have been using it for about a week or so. I checked to see it needed cleaning today and it is still clean.I wrote to the seller and asked a few questions that I will post here:Thank you so much for your patience and for believing in our products.At ShopCorp, we strive to offer the best products and service to all our customers, as you're our main priority.Here's the answers to your requirements:Our ionzier can work continuously, but we advise customers to adopt intermittent working mode to help the ionzier work for a longer time.The cleaning frequency depends on the working environment, if there is much air, or cigarette smoke exists in the air, we advise customers to clean the brush every 2-3 days.For normal working environment, we advise cleaning the unit every 7-10 days once.Cleaning is very easy, you can use a cotton swab, wet wipes (make sure the power is off when you use wet wipes)Any questions, please kindly let us know. We're here to serve you!Best regards,ShopCorpCustomer Service