I’ve always used a duster on my Oled TV once every two weeks. And about every 6 months I use water from my reverse osmosis system warmed up in a pot in a swirling motion on TV it takes some time but does a great job using a clean microfiber cloth. This information should be listed in each owner’s manual but doesn’t. If you look online LG mentions just water to clean TV. Don’t forget to unplug your TV power.