3 layer mask

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• Manufactured in 3 layers

• 2 layers of polypropylene SMS 30 gr

• 1 layer surgical protector filter 18 gr

• Side and top stitched using 100% white Nylon colour thread

• 30 cm elastic strap on both sides 

• Dimensions: 17.5 +/- 1.0 (Length) X 12.5 +/- 0.6 cm (Mexican Social Health Bureau standard)

• Waterproof and washable

• Hygienic

• Sturdy