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Reference.org
Smoke hood
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<p>A smoke hood, also called an Air-Purifying Respiratory Protective Smoke Escape Device (RPED), is a hood wherein a <a href="/facts/Transparency_(optics)/PRryNNW6">transparent</a> airtight bag seals around the head of the wearer while an <a href="/facts/Air_filter/NoYhpPye">air filter</a> held in the mouth connects to the outside atmosphere and is used to breathe. Smoke hoods are a class of emergency <a href="/facts/Breathing_apparatus/RBUjXAEG">breathing apparatus</a> intended to protect victims of fire from the effects of <a href="/facts/Smoke_inhalation/5scM1T8B">smoke inhalation</a>. A smoke hood is a predecessor to the <a href="/facts/Gas_mask/1I8Y1wSs">gas mask</a>. The first modern smoke hood design was by <a href="/facts/Garrett_Morgan/MxI1QdDL">Garrett Morgan</a> and patented in 1912. </p>