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Venturi mask

a type of disposable face mask used to deliver a controlled oxygen concentration to a patient. (See also oxygen therapy.) The flow of 100 per cent oxygen through the mask draws in a controlled amount of room air (21 per cent oxygen). Commonly available masks deliver 24, 28, 31, 35, or 40 per cent oxygen. At concentrations above 24 per cent, humidification may be required. Called also venturi.
A Venturi mask for precise oxygen delivery. From Ignatavicius and Workman, 2000.


Giovanni B., Italian physicist, 1746-1822. See: Venturi effect, Venturi meter, Venturi tube.


a tube with a decrease in the inside diameter that is used to increase the flow velocity of the fluid and thereby cause a pressure drop; used to measure the flow velocity (a venturimeter) or to draw another fluid into the stream.

venturi mask
a type of disposable mask used to deliver a controlled oxygen concentration to a patient. The flow of 100% oxygen through the venturi draws in a controlled amount of room air (21% oxygen). Commonly available masks deliver 24, 28, 31, 35 or 40% oxygen.
venturi nebulizer
a type of nebulizer used in aerosol therapy. The pressure drop of gas flowing through the venturi draws liquid from a capillary tube. As the liquid enters the gas stream it breaks up into a spray of small droplets.
References in periodicals archive ?
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The greatest reward in life is to be remembered and I thank the World Golf Hall of Fame for remembering me," Venturi said.
I have six horses in training but it would be fair to say that the entire season for my horses will be focused on Vic Venturi - although Fintan would have to come into that category as well.
The four-year-old Vic Venturi was about to go through the Doncaster sale ring and Brabazon was keen to buy him back based on his sister's promise.
Runs reported in this paper were carried out using 20mm venturi inlet diameter, 10mm and 9mm constriction diameter and jet of 2mm placed at inlet, centre and outlet along the throat.
The VClient, a key component of the Venturi Wireless Optimization Solution, connects to the Venturi optimization servers that sit in the mobile carrier's network.
2) Twelve years later, in Learning from Las Vegas (1972), Venturi and Scott Brown advocated a Pop architecture that would return this imageability to the built environment from which it arose.
Venturi Technology Partners protests the issuance of a task order to Genuity, Inc.
Powder dissolving jet mixer has no moving parts and features a double venturi that homogeneously mixes liquids and powders without forming foam.
The Venturi 2000 was introduced as a result of customer feedback which provided two data points to the company; the first being that most users of the pneumatic Venturi 1990 only have access to the typical household variety 115 volt electricity, and the second being that the Venturi 1990 is a great system for blasting when the compressed air supply is reasonably clean and dry and when one is using the same source of compressed air rather than taking the machine from plant to plant and using various air supplies that differ in pressure.
A nearly life-sized painting of Ken Venturi is on display in the clubhouse near the first tee at Riviera Country Club, home again this weekend to the PGA's Nissan Open.
The acquisition will give Venturi a strong market presence in 14 new cities.