Wall fans can be great for gyms, and ceiling fans can, too. The key is finding a fan that’s big enough and powerful enough to suit your space. “Find a fan that matches your space,” Ferrazzo says. “If you are tight on space, get something small that you can mount on a wall or ceiling.” And if you aren’t limited on space, he says you might want to get another type of fan—like a large fan that’s packed with settings or a tower fan with built-in wheels.