If you have a home gym, it's important to keep the air circulating so that you don't end up with stale, stuffy air. Opening windows and using fans are both great ways to get fresh air into your workout space. If you have an outdoor area attached to your gym, leaving the door open can also help bring in some fresh air. You can also invest in an air purifier to help keep the air in your gym clean and odour-free. Additionally, it's important to remember that regular cleaning of surfaces and equipment is key for keeping your home gym safe and hygienic.