Snotsucker & Hygiene Filter replacements. Never been used!! Pics of tops of boxes indicate never opened or used. Our child never got so sick that we opted to use this very popular system! And then as he got bigger, we moved to an electric tool. The Snotsucker is a very popular baby item that is great to have in your medicine cabinet for baby sniffles! Makes an excellent baby shower gift or gift for any parent-to-be! Ships fast! Smoke free home. Bundle with other listings in my closet for great discounts!