(helmet ventilation)

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• Equestrian helmet — An Equestrian helmet is worn when riding horses. This type of helmet is specially designed to protect the rider s head if a person falls off a horse, especially if they should strike their head on a hard object while falling or accidentally be… …   Wikipedia

• Bicycle helmet — A bicycle helmet is a helmet intended to be worn while riding a bicycle. They are designed to attenuate impacts to the skull of a cyclist in falls while minimizing side effects such as interference with peripheral vision.[1] There is an active… …   Wikipedia

• Motorcycle helmet — A collection of motorcycle helmets worn by Moto GP racer Valentino Rossi A motorcycle helmet is a type of protective headgear used by motorcycle riders. The primary goal of a motorcycle helmet is motorcycle safety to protect the rider s head… …   Wikipedia

• Football helmet — A football helmet A is a protective device used primarily in American football and Canadian football. It consists of a hard plastic top with thick padding on the inside, a facemask made of one or more plastic bars, and a chinstrap. Some players… …   Wikipedia

• Firefighter's helmet — Fire helmets from around the world on display at the Hall of Flame For centuries, firefighters have worn helmets to protect them from heat, cinders and falling objects. Contents 1 …   Wikipedia

• Pith helmet — The pith helmet (also known as the sun helmet, topee, sola topee, salacot or topi) is a lightweight helmet made of cork or pith, typically from the sola (Indian swamp growth, Aeschynomene aspera or A. paludosa ) or a similar plant… …   Wikipedia

• History of the football helmet — Professionals and amateurs alike wear protective gear to reduce the chance of injury while playing the game of American Football. The history of the football helmet is responsive to both the evolution of materials technology and rule changes in… …   Wikipedia

• Hockey helmet — A hockey helmet is worn by ice hockey players and field hockey goalkeepers to protect the head from potential injury. Hockey helmets grip the head from inside by cupping the back of head, or the occipital protuberance. Helmet manufacturers will… …   Wikipedia

• Bulgarian M36 Helmet — The Bulgarian M36 helmet (in Bulgarian: Каска М36 ) was the basic helmet of the Bulgarian Army prior to the outbreak of World War II and during the Bulgarian participation in the war. Its latest variant is still in service along with several… …   Wikipedia

• noninvasive ventilation — NIV mechanical assistance with breathing that does not require the insertion of an endotracheal tube (see intubation). In noninvasive positive pressure ventilation (NIPPV) air is blown into the lungs through a close fitting mask: designs range… …   The new mediacal dictionary

• Edward D. Thalmann — Infobox Military Person name= Edward Deforest Thalmann born= birth date|1945|04|03 Death date and age|2004|07|24|1945|04|03 died= placeofbirth= Jersey City, New Jersey placeofdeath= Durham, North Carolina caption= nickname=|allegiance=… …   Wikipedia