CDC recommends that people visiting healthcare facilities use the most protective form of source control (masks or respirators) that fits well and will be worn consistently. Healthcare facilities may choose to offer well-fitting facemasks as a source control option for visitors but should allow the use of a clean mask or respirator with higher level protection by people who chose that option based on their individual preference.  Masks and respirators used for source control should be changed if they become visibly soiled, damaged, or hard to breathe through. Learn more about the types of masks and respirators and infection control recommendations for healthcare personnel.