Describe PLB in english
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Pursed-lip breathing (PLB) is a breathing technique that consists of exhaling through tightly pressed (pursed) lips and inhaling through the nose with the mouth closed. ... Pursed-lip breathing can also be used effectively during asthma attacks to slow breathing and reduce the work of breathing.
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Explanation:
it is a personal locator beacon it is a person electronic transmitter.... when it is activated plb sends out a signal
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