Megavent supports the nostril gently and improves nasal breathing. The soft thermoplastic material is smooth and comfortable to sensitive nasal membranes.Megavent stays firmly in place all night, without pressure or irritation.Megavent offers real comfort. The unique shape was developed to avoid the problem of spring-like dilators loosening.4000 snorers tested MegaVent A clear majority of the responders reported less snoring and improved nasal breathing. Around 80% approved of comfort and fitting. The oral health benefits of improved nasal breathing are scientifically well established facts. Dry saliva due to mouth breathing is a known discomfort that can be minimized by MegaventOriginal shape fits most nostrils – or personalize in seconds 10-20 seconds under hot tap water. Press from the short sides to get desired shape, then cool in cold water for 5 seconds. It can be reshaped for perfect fit. Each pair may last approx 1 month. 3 in each box.