BLACK 3 Ply Disposable Face Mask X 100 Our three-ply face masks have three filtering layers for your protection. 3 ply masks defend against dust, allergens, and pollen. The soft filtering cloth allows for easy breathing while acting as a filter for smaller particles from passing through the mask. Black coloured on both sides. Product Features: These 3 Ply Masks are made up from a melt-blown material placed between non-woven fabric. The melt-blown material acts as filter that stops unfiltered air from entering the masks. RECOMMENDED USE: Up to three masks per day. Masks contain filters that prevent spray and pollutants from being spread. For hygiene reasons, use disposable masks and replace them when they get moist. Masks can only be worn for a maximum of four hours and it is best to change them regularly so that they can remain effective. Please Note: 3-ply masks are intended for single-use. If you experience any trouble breathing, or your mask gets dirty or moist, discard the mask immediately and replace with a new mask. Due to hygiene, we cannot accept any returns or exchanges on this product.