When choosing a mask, experts say the fabric and fit matter.

First, consider the fabric itself. Researchers say a tight-weave 100% cotton is the best bet because the natural fibers in cotton tend to have more three-dimensional structure than synthetic fibers, which can stop an incoming particle. Several studies have found that masks made of multiple layers are more effective at blocking small particles.

These masks are made with two layers of tightly woven 100% cotton with a built in pocket for a filter.

Fit also matters. A mask's ability to filter out particles depends on not just what it's made out of but how well it seals to your face. When it comes to cloth masks, those that cup tightly to your face are best, that is why these masks are made to fit tightly around the contours of the face and include nose bridge wire.

Features:

• Two layers of tightly woven 100% cotton

• Built-in pocket for filter

• Nose bridge

• Made to cup tightly around the face

Sizes available include:

• SMALL - fits an average woman’s or teenager’s face

• LARGE - fits an average man’s face

• KIDS 7 - 12 years old

• KIDS 3 - 6 years old

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