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What to do: The CDC recommends knotting, folding then tucking the ear loops of 3-ply masks for a better fit — making the edges of the mask fit…

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What to do: Air leaks around the edges of a mask can be reduced by layering one of these devices on top of a cloth mask for a better fit. A re…

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What to do: Layer a cloth mask on top of a surgical or medical procedure mask. This helps the entire setup fit more snugly. Make sure the fit …

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What to do: Other studies have found that placing a sleeve made of sheer nylon hosiery material around the neck and pulling it up over either …

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7. Layer on the clothes. "Layering is critical," Smith said. "Even thin layers added together to increase one's ability to retain heat ... focus on keeping the torso warm. Often an extra shirt or vest can warm your hands and feet more than an extra pair of socks or gloves." Inexpensive pairs of tights or long johns can be worn underneath clothes. However, be sure that layering doesn't make your clothing tight, he added, since that could reduce blood flow and thus your body's ability to get warm blood to those areas. Wearing a hat, too, can also keep the heat in.

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