Ventilation is the process of both replacing stale air with fresh air and circulating the air in a house through a series of vents or a mechanical system, such as an air conditioner
—The process through which oxygen and carbon dioxide are exchanged between the lungs and the air; also refers to the use of a machine to carry out this process in someone who cannot breathe on his or her own
free and open discussion of (or debate on) some question of public interest; "such a proposal deserves thorough public discussion"
Introducing outside air to replace contaminated indoor air Ventilation is essential in all occupied buildings whether it comes through open windows, fans or air leakage Local exhaust ventilation is another method where contaminants generated by localized sources are directly extracted before they can mix with indoor air An exhaust fan in a smoking lounge, a kitchen range fan or a bathroom fan are all examples of local exhaust systems Office equipment such as photocopiers also produce air contamination and can benefit from an exhaust fan vented to the exterior
Process of supplying or removing air by mechanical or natural means to or from some type of enclosed space The air may be treated or conditioned for comfort
The act of sifting, and bringing out to view or examination; free discussion; public exposure
to provide with a vent or a similar means of airing; to admit fresh air into in order to replace stale air
a mechanical system in a building that provides fresh air; "she was continually adjusting the ventilation"
One of the principal methods to control health hazards; it may be defined as "causing fresh air to circulate to replace foul air simultaneously removed "
The object of ventilation is to free the building of dangerous smoke, fumes, heat and gases so entrance can be made safely and the hose lines can readily reach the seat of the fire so it can be extinguished with as little loss as possible Proper ventilation helps prevent back drafts From Ventilation by R B Criswell, July 1936
The provision of an adequate flow of fresh air along all roadways, workings and service points underground
Air movement in an area of a building due only to natural pressure differences caused by air temperatures Generally intended to dissipate humidity or excessive heat from a building’s envelope Typical vents may include ridge, soffit, gable louvers, turbine vents and roof vents
Exchange of air between the lungs and the atmosphere so that oxygen can be exchanged for carbon dioxide at the alveoli
The process of supplying or removing air by natural or mechanical means to or from any space Such air may or may not have been conditioned
Circulation of fresh air, fundamental to healthy indoor garden An exhaust fan creates excellent ventilation
(Otomotiv) Part of the positive crankcase ventilation system, which reroutes crankcase blow-by to the intake manifold and back to the engine, where it's reburned in the cylinders as part of the fuel/air mixture. This cuts emission pollution and increases fuel economy because unburned fuel in the blow-by is consumed the second time around. It also keeps the blow-by and water vapour from fouling the oil in the crankcase, thus reducing the formation of engine sludge
If you ventilate a room or building, you allow fresh air to get into it. Ventilate the room properly when paint stripping badly ventilated rooms. + ventilation ven·ti·la·tion The only ventilation comes from tiny sliding windows
furnish with an opening to allow air to circulate or gas to escape; "The architect did not thnk about ventilating the storage space" circulate through and freshen; "The gust of air ventilated the room" expose to the circulation of fresh air so as to retard spoilage; "Wheat should be well ventilated
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