This adjustable elastic strap adapts to the width of the person's neck, so that it prevents it from being too tight when put on. It has at least two hooks at its ends, which are attached to the cannula and prevent its fall or accidental ejection. Its main function is to avoid friction of the cannula with the neck, and to ensure that there are no problems with the mobility of the neck. Since Intex has designed this product for easy fitting, it can be easily adjusted with the hooks. In fact, the person can put it on themselves. It is a very practical device for cleaning the inside and outside of the cannula to keep it free of thick mucus.