Eyeglasses specially designed for use with gas masks have just been introduced to the public in England, where the entire civilian population is being trained to protect itself in case of wartime gas attacks. Unlike conventional glasses, whose rigid frames do not always fit close to the head and might cause a slight leak when a mask is put on, the new spectacles have flexible frames made of elastic tape, which fit closely over the side of the face. The flexible frames are easily adjusted.
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