misspelledsearch.com:

ventilation ducting

information page

If you cannot find the information you are searching for on this page, we suggest searching Google with the correct spelling "ventilation ducting":

Good ventilation (right) and bad ventilation (left).

Ventilation is movement of air, typically between an indoor space and the outside. When people or animals are present, ventilation is especially necessary to evacuate the carbon dioxide produced and renew the oxygen used up. It is also needed to remove other pollutants (smoke, chemicals, etc.) from the space. Ventilation air can also be used to heat, cool, humidify and dehumidify the space and to filter particles or contaminants from the air.

In office buildings and other standard applications, a percentage of the total air that is circulated is evacuated outside and compensated by outside air. The time it takes to completely turn over the air volume of a room is considered the ventilation rate and it is measured in air exchanges per hour. Inadequate ventilation in a space occupied by people can cause the level of carbon dioxide to increase leading to sleepyness

If there is something burning (a fireplace, gas heater, candle, oil lamp, etc.) more oxygen is replaced by carbon dioxide (and possibly other poisonous gases and smoke) and more ventilation is needed. If there is a chimney then the additional need of ventilation just refers to replacing the warmer air that leaves by convection through the chimney with fresh air.

Ventilation in a structure is also needed for removing water vapor, produced by breathing, burning, and cooking, and for removing smells, e.g. from a toilet or kitchen. If water vapor is permitted to accumulate, it may damage the insulation or interior finish. A dehumidifier may also be appropriate for removing moisture in the air.

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. Mechanical fans can be used for such ventilation, as are existing openings such as windows, or skylights, scuttle hatches on the roof. If there is no ready-made hole, then the firefighters use their tools to make one, including saws for cutting a large hole in the roof. 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. Some modern construction of high-rise building incorporates automatic ventilation equipment to produce a positive pressure in smoke-proof stairwells.

In respiratory physiology, ventilation is the rate at which gas enters or leaves the lung. Minute ventilation is the total volume of gas entering the lungs per minute). Alveolar ventilation is the volume of gas per unit time that reaches the alveoli, the respiratory portions of the lungs where gas exchange occurs. Dead space ventilation is the volume of gas per unit time that does not reach these respiratory portions, but instead remains in the airways (trachea, bronchi, etc.).

Types of ventilation

• Natural ventilation: Natural ventilation occurs when the air in a space is changed with outdoor air without the use mechanical systems, such as a fan. Most often natural ventilation is assured though operable windows but it can also be achieved through temperature and pressure differences between spaces.
• Forced ventilation as in direct, dedicated or local exhaust ventilation
  • Fume hood
  • Biological safety cabinet
• Dilution ventilation as in general building or room ventilation
• Heat recovery ventilation

See also

• Sick building syndrome
• Gas exchange
• Heating, Ventilation and Air-Conditioning
• Glossary of firefighting terms

External links

• Directory of Ventilation Contractors
• New product features, news, events, training calendar and directory for hvac industry professionals.
• IEA Energy Conservation in Buildings and Community Systems Programme.
• US Home Air Conditioning and Furance Filters
• High Quality Kitchen & Bath Ventilation Supplier

This ventilation ducting index site has been developed to help wayward users find the information they are looking for, no matter how they are mistakenly spelled or mistyped. This site is designed to help users find ventilation ducting information for the following query variants:

ventilation	ventilation ductiegng	ventilation ductiegnt	ventilation ductint
ventilation duding	ventilation dcting	ventilation dudint	ventilation duting
ventilation dudeigng	ventilation ducing	ventilation dudeignt	ventilation ductng
ventilation dudiegng	ventilation ductig	ventilation dudiegnt	ventilation ducteigng
ventilation ducteignt	ventilation ductlng	ventilation ductimg	ventilation ductign
ventilation ductnig	ventilation ducitng	ventilation dutcing	ventilation dcuting
ventilation udcting	ventilation ductin	ventilation ucting	ducting
ventilatiom ducting	viegntilashun ducting	veigntiraton ducting	veigntilashon ducting
vantiratiom ducting	vantilachun ducting	ventiratiom ducting	vntilation ducting
viegntirashun ducting	viegntilation ducting	veigntirashon ducting	vantilaton ducting
vantirachun ducting	ventilachon ducting	vetilation ducting	viegntilasion ducting
viegntiration ducting	veigntilashun ducting	vantiraton ducting	vantilashon ducting
ventirachon ducting	venilation ducting	viegntirasion ducting	viegntilachon ducting
veigntirashun ducting	veigntilation ducting	vantirashon ducting	ventilachun ducting
ventlation ducting	viegntilatiom ducting	viegntirachon ducting	veigntilasion ducting
veigntiration ducting	vantilashun ducting	ventirachun ducting	ventiation ducting
viegntiratiom ducting	viegntilachun ducting	veigntirasion ducting	veigntilachon ducting
vantirashun ducting	vantilation ducting	ventiltion ducting	viegntilaton ducting
viegntirachun ducting	veigntilatiom ducting	veigntirachon ducting	vantilasion ducting
vantiration ducting	ventilaion ducting	viegntiraton ducting	viegntilashon ducting
veigntiratiom ducting	veigntilachun ducting	vantirasion ducting	vantilachon ducting
ventilatin ducting	viegntirashon ducting	veigntilaton ducting	veigntirachun ducting
vantilatiom ducting	vantirachon ducting	ventirasion ducting	ventilaton ducting
ventilashun ducting	ventilashon ducting	ventiration ducting	ventiraton ducting
ventirashun ducting	ventirashon ducting	ventilasion ducting	ventiiation ducting
ventllatlon ducting	vemtilation ducting	ventilatino ducting	ventilatoin ducting
ventilaiton ducting	ventiltaion ducting	ventialtion ducting	ventliation ducting
venitlation ducting	vetnilation ducting	vnetilation ducting	evntilation ducting
ventilatio ducting	entilation ducting

If you would like to add or correct the content of this site, or if you are interested in supporting the efforts of misspelledsearch.com by placing your product information on these ventilation ducting pages, please contact mistype@gmail.com for details.