The introduction of outdoor air into a building by mechanical means.
This is the process of allowing gas exchange to occur, so that gas can enter freely and leave freely from an organism. It may refer to the passive flow of air into and out of a leaf for example, or to the active breathing carried out by many animals.
The provision of a directed flow of fresh and return air along all underground roadways, traveling roads, workings, and service parts.
Control of air movement under glass to avoid atmospheric stagnation and regulate temperature.
a general term for the physiologic process of delivering fresh air to the lungs for gas exchange. The term is sometimes used interchangeably with respiration.
The circulation of air through a building to provide fresh air to the occupants and to deliver heating and cooling to the occupied spaces. End-use estimates are estimated for ventilation and eight other end uses. (See Energy End Use.)
g-values (SHGC) and U-values of glazing with shading are dependent on ventilation air flows in the cavity between the glazing and the shading, as described in ISO15009. Two examples: Without ventilation (compliant to EN410 / ISO9050) and with natural (not forced) air ventilation.
Adequate air movement, needed particularly when using solvent-based products such as enamel paint s in confined areas and when spray ing any type of paint. As well as having suitable ventilation you should take regular breaks to avoid over-exposure to solvent fumes.
To circulate fresh air through a space or system.
Supplying sufficient air to a conditioned space to ensure occupant comfort and wellness.
the act of supplying fresh air and getting rid of foul air
a mechanical system in a building that provides fresh air; "she was continually adjusting the ventilation"
the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation
the process of supplying or removing air to or from a room or space either by natural or mechanical means
circulation of fresh air, fundamental to healthy indoor garden. An exhaust fan creates excellent ventilation.
The use of air-permeable materials in cigarette filters, e.g. perforated tipping paper and porous plugwrap.
The amount of air that moves in and out of the lungs.
System in the pen that permits the air to enter the pen in a way to replace the loosen volume of ink during writing
The replacement of stale or noxious air with fresh air. The mechanical system or equipment used to circulate air or to replace stale air with fresh air.
The term used in roofing for the passage of air from an enclosed space.
The provision of an adequate flow of fresh air along all roadways, workings and service points underground.
The process of oxygenating the blood through the lungs.
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.
The process of supplying or removing air by natural or mechanical means to or from any space. Such air shall be permitted to be conditioned or unconditioned.
The process of replacing stale air with fresh air, usually by circulation through a series of vents or a mechanical system such as an air conditioner.
Process of providing fresh air for the animals and removing stale air and moisture along with dilution of noxious gases, particulates, etc. in the room.
movement of air (gases) in and out of the lungs.
Creates a positive flow of air that allows the house to "breathe" and helps prevent moisture build-up year-round.
a) Circulation of air in any space by natural wind or convection or by fans blowing air into or exhausting air out of a building b) A fire-fighting operation of removing smoke and heat from the structure by opening windows and doors or making holes in the roof.
The process by which air (or other gases) are moved into and out of the lungs.
a system to allow air to flow freely in a building
the process of expelling stale air and circulating fresh air. Hydroponics growers use exhaust fans for ventilation.
Movement of air, usually associated with the introduction of fresh air.
Process by which a ventilated flow is formed and maintained. "Natural Ventilation" exists when a continuous or intermittent flow of air is created by means of the flow itself, as from the free surface in the case of a surface-piercing, ventilated strut. "Forced Ventilation" exists when the air is continuously supplied into the cavity by auxiliary means such as a pump.
Exchange of air between the lungs and the atmosphere so that oxygen can be exchanged for carbon dioxide at the alveoli.
Circulation of fresh area and exhaust gases.
the process of breathing in and out to supply the body with oxygen and remove carbon dioxide.
the movement of gas in and out of the lungs to facilitate blood oxygenation and carbon dioxide removal.
in respiratory physiology, circulation or the process of exchange of gases in the lungs or gills in the ambient air or water, respectively
Process of supplying a building or room with fresh air Process of exchange of air between the ambient atmosphere and the lungs In physiology, the amount of air inhaled per day Oxygenation of blood
The process of supplying outside fresh air to, or removing air from an enclosure.
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
A cigarette can be ventilated to dilute the smoke, which in turn reduces delivery of tar, nicotine and carbon monoxide. All cigarettes are ventilated through the paper, through which air can penetrate, and many commercial cigarettes are also ventilated through small air holes on the filter tip. When a smoker inhales, air is drawn in through these small holes, and mixes with air drawn in through the lit end, diluting the smoke. Native American Cigarettes do not, however, use the "holes in the filters" method to produce their Light and Ultra Light cigarettes. Instead, the tobaccos used are specifically blended to attain a Full Flavor, Medium, Light or Ultra Light cigarette.
1. In the equation for the time constant of a thermometer, a quantity equal to the product of wind speed and air density. The time constant varies inversely with ventilation. The concentration of an air pollutant is inversely proportional to the ventilation, the mass flux of "clean air" moving past the observer. Stagnation, a condition caused by the lack of ventilation, is historically associated with major air pollution episodes. It occurs due to the lack of horizontal wind speed and the lack of vertical wind speed, for example, caused by an inversion. 2. The exchange of properties with the surface layer such that property concentrations are brought closer to equilibrium values with the atmosphere. Such exchange may occur without water mass formation. 3. In weather-observing terminology, the process of causing "representative" air to be in contact with the sensing elements of observing instruments; especially applied to producing a flow of air past the bulb of a wet-bulb thermometer.
circulate air to oxygenate blood
The natural or mechanical process of supplying conditioned or unconditioned air to, or removing such air from, any space.
The replacement of stale air with fresh air by circulation through a series of vents or a mechanical system, i.e. air conditioning.
Exchange of air in and out of the lungs.
Supplying and removing air by natural or mechanical means to and from any space.
A technique of permitting or forcing the heated smoke and gases of a fire to escape to the atmosphere and replacing with cooler fresh air.
The process of moving air (changing) into and out of an interior space either by natural or mechanically induced (forced) means.
In firefighting, ventilation refers to the tactic of creating a draft with an opening above or opposite the entry point so that heat and smoke will be released, permitting the firefighters to find and attack the fire. If a large fire is not properly ventilated, not only will it be much harder to fight, but it could also build up enough poorly burned smoke to create a smoke explosion, or enough heat to create a flashover. Contrarily, poorly placed or timed ventilation may increase the fire's air supply, causing it to grow and spread rapidly.
