Years ago I wrote an article about cleaning your Mac or iPhone screen. Given concerns about COVID-19 and the flu, it’s useful to point out that Apple provides cleaning guidelines for all of your Apple products. In particular, Apple appears to have recently updated their article with guidance on how to disinfect your Apple products. If you’re the only person who uses and touches your device, you don’t need to disinfect it since you can’t catch a disease from yourself. But if you put your device onto unclean tables or other hard surfaces or you need to let others use your device(s), then Apple recommends using a Clorox Disinfecting Wipe or another wipe that contains at least 70 percent isopropyl alcohol. Be aware that these wipes can break down the oleophobic coating on iPhones and iPads. They could also negatively impact the coating on your Mac’s Retina display. Thus, you should only wipe the device gently. Also, be sure to avoid getting moisture in any of the openings in your device. To be extra safe, you should turn off your device while you’re cleaning it, then make sure the moisture has evaporated before you turn on the device. Apple points out that you should not use bleach on your Apple products.