
We wash our hands, sanitize shopping trolleys and wipe down cafe tables. But what about our phones? We touch these devices dozens of times a day, and take them everywhere from the kitchen to the dining table, and even the bathroom.
Phones can be contaminated with many kinds of potential germs. When was the last time you wiped down yours—and with what?
If you use the wrong cleaning agents or tools, you could strip your phone’s protective coatings, degrade waterproof seals, or even affect its touch sensitivity.
Do phones really need cleaning?
Touchscreens get covered in fingerprints and smudges, so there are aesthetic and functional reasons to wipe down your screen.
Another reason comes down to potential health concerns. Whenever mobile phones are swabbed for microorganisms, scientists inevitably find hundreds of species of bacteria and viruses.
While not all of these cause sickness, the potential for transmission is there. We use phones while in the bathroom and then put them near our mouths, touch them while eating, and pass them between people in meetings, cafes, parties and classrooms.
Unlike hands, which can be washed many times a day, phones are rarely cleaned properly—if at all.
If you do want to sanitize your phone, it’s also important to not damage it in the process.
Some cleaning products will damage your phone
You might think a quick swipe with a household cleaner or hand sanitizer is a clever shortcut to keeping your phone clean. However, many of these products can actually degrade your device’s surface and internal components over time.
For example, both Apple and Samsung advise against using bleach, hydrogen peroxide, vinegar, aerosol sprays, window cleaners or high-concentration alcohol wipes (above 70%) on their devices.
Most smartphones are coated with an oleophobic layer—a thin film that helps resist fingerprints and smudges. Harsh chemicals such as alcohols, acetone or ammonia-based cleaners can strip this coating, making your screen more vulnerable to smudging, and diminished touch responsiveness.
Vinegar, a common DIY disinfectant, can corrode aluminum or plastic edges due to its high acidity. Bleach and hydrogen peroxide, though highly…
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