According to Apple, you should use micellar water with PEG-6 Caprylic/Capric Glycerides, distilled water, a soft-bristled children's toothbrush, two small cups, and a paper towel. Fortunately, Apple also suggests something much simpler: an AirPods cleaning kit. The AirPods maker points customers to the Belkin AirPods Cleaning Kit.
Cleaning pros say that this is a kitchen cleaning task you should do every one to three months to prevent a buildup of food splatters, grease, oil, and dust - all of which could damage the walls, cause foul odors, and attract pests like flies and roaches.
When I first moved into my apartment, there was already a dark ring around the base of the faucet that refused to budge no matter how many cleaners I tried. Eventually, I gave up and assumed it would require a professional cleaning. Then I tried the Full Circle Home Grout Brush, and it actually got it so clean in minutes.