Useless when they are badly positioned

useless when they are badly positioned in your facearea. They are disposable and protect the wearer against dust, influenza viruses (fowl influenza, SARS), and fine particles - provided that all the requirements of optimal use are respected: correctly apply the mask on either sides of the nostril, usually do not dash to prevent it from being electrically dischargedand throw it away after 8 hrs use... Such conditions are rarely satisfied. People do not realize which the reason for frequent stress, oxybreath pro mask cold & cough and also other nagging ailments regularly arises in your in door air pollution. The air that you breathe in your home or office is equally hazardous than the contaminated air out. The market for anti pollution face masks will be full swing and the number of end users will be currently rising steadily. 

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https://oxybreathpromaskreviews.blogspot.com/2020/03/oxybreath-pro-mask-2020-price-effects.html

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