Does wearing two masks provide more protection?

Health experts recommend a single cloth mask with multiple layers, but doubling up on masks could offer added protection in certain situations. The U.S. Centers for Disease Control and Prevention recommends wearing a cloth mask made with two or more layers, and ensuring it covers your nose and mouth. If you expect to be around others indoors for extended periods, some experts suggests wearing a cloth mask as well as a surgical mask to achieve a similar effect as the N95 mask.