210 Thank you for viewing! ❤️ ✨Brand new, unused✨ ✨Free shipping✨ ✨Instant purchase welcome✨ #Yumekai's Bargain Bonanza High-performance filtering and standard level breathability: High-performance electrostatic filters can filter particles as small as 1 micron. A discreet nylon mesh layer adheres to the surface of the filter, preventing fibers from falling off. Fits the nose: Designed to fit the natural shape of the nose, ensuring a secure fit. Comfortable wear: The nasal filter, inserted into the nose, only touches the skin of the nasal cavity and is positioned 0.5 cm away from the nasal mucosa, allowing for comfortable wear. Discreet design: The connecting tip is ultra-thin and unnoticeable day or night.