Double nose bridge design, more three-dimensional, no makeup, smooth breathing, expiratory resistance and inspiratory resistance are less than 30
Learn MoreSingle-piece packaging, hygienic, convenient, colorful personalized masks
Learn MoreBFE, PFE and VFE all exceed 99%. Unobstructed breathing, expiratory resistance, inspiratory resistance are less than 30.
Learn MoreDouble nose bridge design, more three-dimensional, no makeup, smooth breathing, expiratory resistance and inspiratory resistance are less than 30.
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