Whatever the space—your home, your office, your classroom—there are a variety of surfaces. And those surfaces? They’re pretty disgusting. To help keep you and those you care about healthy, we’ve researched the germiest places in any room. And we’re also sharing how (and how often) to disinfect them.

Door handles

Door handles are hotspots for bacteria, and the more frequently they’re used, the worse it is. So that public bathroom is probably rife with germs. The Cleaning Institute recommends that door handles and knobs be thoroughly cleaned at least twice a week, and soap and water won’t cut it. Use Lysol Disinfecting Wipes, which kill 99.9% of germs when used as directed.

Light switches

Light switches are something else that we touch all the time (almost every time we go in and out of a room) but often get left off of our cleaning checklists. Like handles, switches also need to be disinfected at least twice a week. Make sure to turn off the electricity before you wipe anything down. 


We’re talking kitchen counters, bathroom counters, classroom counters. All of them, well, count. Especially on surfaces where you’re preparing food (where there’s food, there are bacteria), a daily wipe-down is necessary. The Centers for Disease Control and Prevention recommend hot, soapy water to clean kitchen counters. But Salmonella, E. coli, and Staphylococcus (staph) can live a long time on surfaces, so this is another time to break out Lysol Disinfecting Wipes (after first wiping up visible spills and rinsing the surface with potable water after use for food-contact surfaces).


Plenty of rooms have faucets in them: the bathroom, kitchen, laundry room, and definitely the classroom. When cleaning faucets, we tend to miss the aerator (the little filter underneath). To disinfect it, you’ll first unscrew it and then soak it in a three parts water/one part vinegar solution. The frequency of cleaning depends on how often the faucet used.


Because they get such frequent touches, keyboards are some of the worst offenders for spreading germs. It’s compounded if they’re shared, so the school computer lab is basically a hotbed of germs. You do not want to use a disinfecting spray on a keyboard. Use a Lysol Disinfecting Wipe on the powered-down device and follow up with a soft, lint-free cloth. Once or twice a month should do it.

Cell phones

We take them everywhere and are constantly touching them, so is it really a surprise that your cell phone is 10 times dirtier than a toilet seat? You should clean it every time you come home after being out and about. To disinfect your phone, remove the case (clean it, too), power it down, wipe it down with a Lysol Disinfecting Wipe (avoiding ports), let it air dry for four minutes, then wipe it down with a clean, microfiber cloth. 

Your hands

Sorry to break it to you, but the germiest thing in any room is … you. All of the things we just listed would be a whole lot cleaner if the people using them washed their hands on a regular basis. Wash your hands with soap for at least 20 seconds after using the toilet, coughing, sneezing or blowing your nose, touching or handling pets, and whenever you have touched a dirty surface. And make sure any kids in your care do, too!

Looking for resources on teaching healthy habits? Check out Lysol’s HERE for Healthy Schools.

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