Lifts open nasal passages for up to 31% more airflow. Breathe Right® Nasal Strips may help reduce or even eliminate snoring. This product is a medical device that consists of an adhesive strip with a flexible "spring-like" band which gently lifts nasal passages open. Size: small/medium. The size is important, use the right size for best results. Small/medium nasal strips fit 75% of noses, large nasal strips are for adults with a larger nose.