Dr. Jacobson says most airplanes use high-efficiency particulate air (HEPA) filters that catch microbes. Plus, cabin air is refreshed every few minutes, and a good portion comes from outside the aircraft. As a result, what blows out of the vents is pretty fresh. This strategy also keeps the air around you moving faster, meaning there’s less time for you to inhale any possible germs in the cabin, according to Dr. Jacobson. Still, if the person sitting next to you is coughing and sneezing, it’s best to wear a mask if you have one, he says. The filtration system can only do so much in that instance—and it’s not always on before takeoff and after landing.
Be mindful about how you eat and drink
If you can, Dr. Russo suggests eating before you get to the airport to lessen the number of times you’ll need to remove your mask when you’re around other people. If you need to dine at the airport, Dr. Schaffner recommends looking for seating away from crowded areas.
When masks were still required for air travel, the suggested strategy for eating and drinking on board was to wait until your fellow fliers finished their snacks and refreshments. But now, Dr. Russo points out, the people around you may not mask up at all. Instead, he suggests dropping your mask, taking a sip or bite, and immediately pulling it back up. This lowers the odds you’ll breathe in viral particles that may be floating around, he explains.
Plan your vaccine around your trip
Dr. Schaffner and Dr. Russo recommend getting the updated COVID-19 vaccine about two weeks before your trip. “It’s a good strategy,” Dr. Russo says. It usually takes 14 days or so for your body to build up immunity to COVID after getting vaccinated, according to the World Health Organization. This means your body should be ready to fight the virus by the time you fly, Dr. Russo says. Immunity also fades over time, making the timing of your shot important, he says.
Wash your hands…a lot
Experts say you’re more likely to get COVID-19 from breathing in infectious droplets and particles than from touching things. But there’s still a chance you could get sick if you happen to touch a contaminated surface and then your eyes, nose, or mouth.
“What we’ve learned is that transmission from this virus from inanimate objects is very low, but it’s not zero,” Dr. Russo says. That’s why he recommends good hand hygiene while flying. You should wash your hands with soap and water, making sure to scrub for at least 20 seconds, and do so often: before and after security, whenever you use the bathroom, and before eating or touching your face. Hand sanitizer is also a good option in a pinch, Dr. Russo says. But he stresses that keeping your hands clean shouldn’t replace masking up. “It’s much, much less helpful than wearing a mask,” he says.
