Yes, for low to moderate intensity physical activity. Both the BUFF® Filter Mask and the BUFF® Filter Tube fit very well, stay firmly in place and perform well for sport, meeting the breathability performance requirements of EN14683: 2019 for Type I and II. The conform to the recommendations of the U.S. Centers for Disease Control and Prevention (CDC). USA. and other relevant authorities around the world, "in high-intensity activities, such as running, you may not be able to wear a face mask if it causes shortness of breath. If you cannot wear a facemask, consider doing the activity in a place with greater ventilation and air exchange (e.g., outdoors) and where it is possible to maintain physical distance from others."