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To avoid COVID, scope out the most ventilated spots in the gym, or see if you can crack a window, Roberts suggests. And keep distance — aim for six feet — between yourself and others, when

possible. That means avoiding crowded classes in closed-off rooms during the peak of the cold and flu season. “Be willing to change your workout plans once you arrive (use different

equipment or participate in classes) based on number of people present when you get there,” says microbiologist Daniel Sanford, a researcher at Battelle Memorial Institute, a nonprofit

research organization in Columbus, Ohio. If it’s packed, for example, play pickle ball instead of taking a yoga class. 3. SANITIZE To steer clear of colds, flu and RSV, wipe surfaces where

these viruses can settle with a disinfecting or bleach wipe. According to Canadian microbiologist Jason Tetro, influenza virus can survive for four hours. And don’t forget free weights,

which are rarely cleaned and are among the germiest objects in the gym. How you clean exercise equipment and machines makes a difference, however. Wiping them and then drying the wet surface

with a towel defeats the purpose, Tetro says. “There’s a contact or ‘dwell’ time, which is how long a disinfecting product has to remain wet to be effective,” he says. That could be from 30

seconds to several minutes (the product’s instruction label usually has this information). But “how many of us are willing to wait three to five minutes after someone has used a piece of

equipment?” Tetro says. He suggests investing in weightlifting gloves, which cover the palm and the base of the fingers, leaving the fingertips free. “We use the meat of our hands when

working out,” he explains. To keep the fingertips virus-free, wipe them frequently with hand sanitizer, Tetro says. That’s particularly important as people tend to touch their faces many

times an hour, giving germs a foothold.  4. TIME YOUR WORKOUT  When you work out can play a role in infection risk, Sanford says. “If you know your gym does a thorough wipe down or cleaning

at night, then getting in early before the equipment sees a lot of use is ideal,” he says. “If not, avoid peak hours like at lunch or after work, if possible.” A 2018 study published in the

journal _Environmental Science & Pollution Research_ bears that out. Researchers found that infection risk was highest in the evening when the gym reached peak capacity and carbon

dioxide levels were highest, an indication that lots of people were breathing — and potentially exhaling virus particles into the environment.