On long trips, many travelers skip packing a hair dryer to save space, trusting that the hotel will provide one. But according to several investigations, the humble hotel hair dryer may be one of the dirtiest items in the room—and a hidden health hazard you should seriously reconsider using.
A Germ Hotspot Hidden in Plain Sight
Hotel staff typically clean the room after each guest checks out, but there’s one item that often gets overlooked: the hair dryer. Because it’s rarely cleaned, it ends up being one of the most bacteria-laden objects in the entire room—sometimes even dirtier than the toilet or sink.
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In a hidden investigation by ABC News, microbiologist Chuck Gerba tested samples from nine different hotels in the Los Angeles area. The findings? Shocking.
“Who knows what people have done with hotel hair dryers. They’re full of germs,” Gerba reported.
Even more surprising, this wasn’t just an issue in budget hotels. The study included rooms ranging in price from $98 to $500 a night—and contamination was found across the board.

Why Are Hotel Hair Dryers So Dirty?
Hair dryers are often placed near sinks, bathtubs, or toilets—locations teeming with germs. After being used by countless guests, they’re rarely (if ever) sanitized. Moisture from bathrooms and the warm internal temperature of the dryer create a perfect breeding ground for bacteria and mold.
Worse, 97% of the bacterial contamination is found in the vent area, right where hot air blows out—directly onto your face, hair, and hands. This means when you use it, you’re essentially blasting a stream of invisible germs straight at yourself.
“There’s a real risk of catching flu viruses or gastrointestinal bugs,” warns Gerba. “Even a small number of dangerous microorganisms can make you sick.”
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Professional Stylists Say: Avoid at All Costs
Hair professionals and hygiene experts strongly advise against using hotel hair dryers for one main reason—they’re handled by dozens, if not hundreds, of people and almost never get deep-cleaned. Over time, grime, bacteria, and even dead skin cells build up in the air vents.
Previous lab studies confirm: the inside of hotel hair dryers often contains significantly more bacteria than surrounding surfaces. And since the heat helps circulate those germs, the danger isn’t just theoretical—it’s airborne.

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What Should You Do?
The best solution? Pack a compact travel-size hair dryer of your own. Many modern models are lightweight, foldable, and designed specifically for travelers. This small investment not only saves you from potential illness but also gives you peace of mind every time you dry your hair.
Bottom line: Hotel rooms may look sparkling clean, but don’t be fooled by appearances. The hair dryer is one of the most overlooked—and potentially dangerous—items in the room. When in doubt, bring your own and stay safe.