This humidity-resistant Honeywell Nuisance Disposable Dust Mask will help you stay protected against airborne irritants such as pollen, dust and dander. Designed for a secure fit, the lightweight breathing mask has an easy-to-wear single strap construction and adjustable nose bridge to help you get the job done in comfort. The filter media offers lower breathing resistance, and the mask is latex-free to help lower the chances of allergic reactions. Not NIOSH approved for use with toxic mists or chemicals, this disposable dust mask is intended for protection against non-toxic particles only. Each box includes 50 dust masks, and the one size design will fit most faces.