Package include: 4 pcs of dust masks Color: blue Size: 8.2" ×6.5" Nowadays air pollution is more and more severe. Vehicle emission, industrial exhaust, second hand smoke keep doing harm to our health. It is necessary to have a dust mask to protect us from the harmful particulates. 5 layer dust mask is excellent with its scientific design and premium quality. With N95 grade material, the dust mask can filter particulates of 1micron diameter. EVA nose pad help keep glasses clear and breathing freely. Warm reminder: The mouth mask is disposable. A total usage time of less than 15 hours per piece is advised.
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