{"id":2546,"date":"2023-08-21T09:23:56","date_gmt":"2023-08-21T07:23:56","guid":{"rendered":"https:\/\/limodor.dev-web.at\/ventilation-glossary\/"},"modified":"2026-07-13T14:02:19","modified_gmt":"2026-07-13T12:02:19","slug":"ventilation-glossary","status":"publish","type":"page","link":"https:\/\/www.limodor.com\/en\/ventilation-glossary\/","title":{"rendered":"ventilation glossary"},"content":{"rendered":"\n\t<section class=\"section wave\" id=\"section_1100082686\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"1333\" src=\"https:\/\/www.limodor.com\/wp-content\/uploads\/2023\/09\/realsituation_6.jpg\" class=\"bg attachment-original size-original\" alt=\"L\u00fcfter sind bei Komfort und Efiizienz unschlagbar.\" \/>\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1100082686 {\n  padding-top: 0px;\n  padding-bottom: 0px;\n  min-height: 50vh;\n}\n#section_1100082686 .section-bg img {\n  object-position: 17% 33%;\n}\n@media (min-width:850px) {\n  #section_1100082686 {\n    min-height: 50vh;\n  }\n}\n<\/style>\n\t<\/section>\n\t\n\n\t<section class=\"section section-space\" id=\"section_1056910006\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row row-collapse align-center\"  id=\"row-49101415\">\n\n\n\t<div id=\"col-827255140\" class=\"col medium-8 small-12 large-8\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\n<h1>ventilation glossary<\/h1>\n<p>Our glossary contains the most important terms from ventilation technology. Search and find made easy. <\/p>\n\n\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-827255140 > .col-inner {\n  padding: 0px 20px 0px 20px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1056910006 {\n  padding-top: 0px;\n  padding-bottom: 0px;\n}\n<\/style>\n\t<\/section>\n\t\n\n\t<section class=\"section\" id=\"section_437065770\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-575826344\">\n\n\n\t<div id=\"col-1069812607\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<div class=\"glossary-container\"><div class=\"letters-container\"><div class=\"letter\" id=\"e5AnchorA\"><span>A<\/span><\/div><div class=\"letter\" id=\"e5AnchorB\"><span>B<\/span><\/div><div class=\"letter\" id=\"e5AnchorC\"><span>C<\/span><\/div><div class=\"letter\" id=\"e5AnchorD\"><span>D<\/span><\/div><div class=\"letter\" id=\"e5AnchorE\"><span>E<\/span><\/div><div class=\"letter\" id=\"e5AnchorF\"><span>F<\/span><\/div><div class=\"letter\" id=\"e5AnchorH\"><span>H<\/span><\/div><div class=\"letter\" id=\"e5AnchorI\"><span>I<\/span><\/div><div class=\"letter\" id=\"e5AnchorJ\"><span>J<\/span><\/div><div class=\"letter\" id=\"e5AnchorM\"><span>M<\/span><\/div><div class=\"letter\" id=\"e5AnchorN\"><span>N<\/span><\/div><div class=\"letter\" id=\"e5AnchorO\"><span>O<\/span><\/div><div class=\"letter\" id=\"e5AnchorP\"><span>P<\/span><\/div><div class=\"letter\" id=\"e5AnchorR\"><span>R<\/span><\/div><div class=\"letter\" id=\"e5AnchorS\"><span>S<\/span><\/div><div class=\"letter\" id=\"e5AnchorV\"><span>V<\/span><\/div><div class=\"letter\" id=\"e5AnchorW\"><span>W<\/span><\/div><\/div><div class=\"horizontal-break\"><\/div><div class=\"definitions-container\"><div class=\"definitionsByLetter\" data-letter=\"A\"><span class=\"definitions-header\">A<\/span><div class=\"definition-wrapper\"><div class=\"definition\"><span class=\"title\">Air change rate<\/span><span class=\"description\">The air change rate indicates how often the total volume of air in a room is completely replaced within one hour. It is an important metric for designing ventilation systems and helps ensure good air quality and effective moisture control. <\/span><\/div><div class=\"definition\"><span class=\"title\">Air exchange<\/span><span class=\"description\">Air exchange refers to the replacement of stale indoor air with fresh outdoor air. Adequate air exchange is important for health, comfort, and moisture control. <\/span><\/div><div class=\"definition\"><span class=\"title\">Air Quality<\/span><span class=\"description\">Air quality refers to the purity and freshness of indoor air. Factors such as CO\u2082, particulate matter, allergens, and humidity affect indoor air quality. <\/span><\/div><div class=\"definition\"><span class=\"title\">Air Tightness<\/span><span class=\"description\">Air tightness describes how well a building is sealed against uncontrolled airflow. High air tightness improves energy efficiency and provides the foundation for the optimal operation of modern ventilation systems. <\/span><\/div><div class=\"definition\"><span class=\"title\">Air volume flow<\/span><span class=\"description\">Airflow describes the volume of air that flows through a ventilation system, a ventilation duct, or a room within a given period of time. It is typically expressed in cubic meters per hour (m\u00b3\/h) and is a key parameter for the design and performance evaluation of ventilation systems. A properly designed air flow rate ensures an adequate supply of fresh air, high air quality, and effective moisture control.  <\/span><\/div><div class=\"definition\"><span class=\"title\">Antifreeze (frost protection)<\/span><span class=\"description\">The frost protection system prevents components and heat exchangers from freezing when outdoor temperatures are low. Modern ventilation systems are equipped with special frost protection features that ensure safe and reliable operation even in winter. <\/span><\/div><\/div><\/div><div class=\"definitionsByLetter\" data-letter=\"B\"><span class=\"definitions-header\">B<\/span><div class=\"definition-wrapper\"><div class=\"definition\"><span class=\"title\">Basement Ventilation<\/span><span class=\"description\">Basement ventilation ensures a controlled exchange of air in basement rooms and reduces moisture, odors, and the risk of mold. Especially in energy-efficient buildings, demand-based basement ventilation helps protect the building structure. <\/span><\/div><div class=\"definition\"><span class=\"title\">Bathroom fan<\/span><span class=\"description\">A bathroom exhaust fan removes moist air and unpleasant odors from the bathroom and toilet. It helps prevent mold growth and improves air quality over the long term. <\/span><\/div><div class=\"definition\"><span class=\"title\">Bypass, Summer Bypass<\/span><span class=\"description\">A bypass is a feature in ventilation systems with heat recovery that bypasses the heat exchanger when necessary. This allows cooler outside air to be directed directly into the living spaces during the night and early morning hours without being heated by the warmer exhaust air. In this way, the bypass\u2014also known as the summer bypass\u2014contributes to a pleasant indoor climate and greater living comfort during the warm season.  <\/span><\/div><\/div><\/div><div class=\"definitionsByLetter\" data-letter=\"C\"><span class=\"definitions-header\">C<\/span><div class=\"definition-wrapper\"><div class=\"definition\"><span class=\"title\">Central Home Ventilation<\/span><span class=\"description\">In a central ventilation system, a single central unit supplies fresh air to the entire building through a duct system. It is particularly well-suited for new construction and energy-efficient homes. <\/span><\/div><div class=\"definition\"><span class=\"title\">Condensate<\/span><span class=\"description\">Condensation occurs when warm, moist air comes into contact with colder surfaces, causing water vapor to turn into water. In buildings, condensation can cause moisture damage and mold growth. A properly designed residential ventilation system helps reliably remove excess moisture.  <\/span><\/div><div class=\"definition\"><span class=\"title\">Controlled Residential Ventilation<\/span><span class=\"description\">Controlled residential ventilation automatically ensures a continuous exchange of air. This removes moisture, pollutants, and odors while allowing fresh air to enter the building. <\/span><\/div><div class=\"definition\"><span class=\"title\">CO\u2082<\/span><span class=\"description\">Carbon dioxide is produced, among other things, by human respiration and can accumulate in poorly ventilated rooms. High CO\u2082 levels have a negative impact on concentration, well-being, and indoor air quality. Regular ventilation ensures adequate air exchange and a comfortable indoor environment.  <\/span><\/div><div class=\"definition\"><span class=\"title\">CO\u2082 Sensor<\/span><span class=\"description\">A CO\u2082 sensor measures the carbon dioxide level in the indoor air. Rising levels indicate poor air quality. Smart ventilation systems can automatically adjust their output based on the measured CO\u2082 level.  <\/span><\/div><div class=\"definition\"><span class=\"title\">Cross ventilation<\/span><span class=\"description\">Cross-ventilation is a particularly effective method of window ventilation in which windows or doors on opposite sides of a room are opened simultaneously. The resulting airflow quickly replaces the stale indoor air with fresh outdoor air. Cross-ventilation helps to quickly remove moisture, CO\u2082, and odors.  <\/span><\/div><\/div><\/div><div class=\"definitionsByLetter\" data-letter=\"D\"><span class=\"definitions-header\">D<\/span><div class=\"definition-wrapper\"><div class=\"definition\"><span class=\"title\">Decentralized ventilation system<\/span><span class=\"description\">A decentralized residential ventilation system ventilates individual rooms directly through units installed in the exterior wall. It is particularly well-suited for renovations and provides fresh air without the need for a complex duct system. <\/span><\/div><div class=\"definition\"><span class=\"title\">Dehumidify<\/span><span class=\"description\">Dehumidification refers to the targeted reduction of absolute humidity in rooms. Excess moisture is removed from the indoor air through ventilation or technical systems. Effective dehumidification helps prevent mold growth, condensation, and moisture damage, and ensures a healthy and comfortable indoor environment.  <\/span><\/div><div class=\"definition\"><span class=\"title\">Demand-controlled ventilation<\/span><span class=\"description\">Demand-controlled ventilation automatically regulates air exchange based on the current conditions in the room. Using sensors, the system responds to humidity, CO\u2082 or temperature, ensuring optimal air quality while delivering high energy efficiency and maximum comfort. <\/span><\/div><div class=\"definition\"><span class=\"title\">Dew point<\/span><span class=\"description\">The dew point refers to the state of the air at which it can no longer absorb any more water vapor (100% relative humidity). If the air temperature continues to drop under these conditions, the water vapor in the air turns into condensation, which can settle on building components and increase the risk of mold growth. Controlled residential ventilation helps regulate humidity and prevent condensation.  <\/span><\/div><\/div><\/div><div class=\"definitionsByLetter\" data-letter=\"E\"><span class=\"definitions-header\">E<\/span><div class=\"definition-wrapper\"><div class=\"definition\"><span class=\"title\">Exhaust air<\/span><span class=\"description\">Exhaust air refers to the used, cooled indoor air that is discharged to the outside by a ventilation system. It carries moisture, CO\u2082, and odors out of the building and is an essential component of controlled air exchange. Exhaust air promotes good air quality and helps prevent mold growth.  <\/span><\/div><div class=\"definition\"><span class=\"title\">Exhaust air<\/span><span class=\"description\">Exhaust air is the stale air that is extracted from indoor and living spaces and discharged to the outside. A controlled exhaust air system ensures that moisture, odours and pollutants are removed, thereby helping to maintain a healthy indoor climate.<\/span><\/div><div class=\"definition\"><span class=\"title\">Exterior Wall Grille<\/span><span class=\"description\">An exterior wall grille serves as the interface between the ventilation system and the outside air. It protects ventilation openings from the elements, insects, and dirt, while also enabling controlled air intake or exhaust. High-quality exterior wall grilles contribute to the efficiency and longevity of ventilation systems.  <\/span><\/div><\/div><\/div><div class=\"definitionsByLetter\" data-letter=\"F\"><span class=\"definitions-header\">F<\/span><div class=\"definition-wrapper\"><div class=\"definition\"><span class=\"title\">Filter Class<\/span><span class=\"description\">The filter class describes how effectively an air filter traps particles such as dust, pollen, or fine dust. High-quality filters improve air quality and are particularly beneficial for people with allergies. G-filters trap coarse dust, M-filters also filter out finer particles, and F-filters provide effective protection against fine dust and pollen. The right filter class improves air quality and increases comfort in living spaces. Regular filter replacement is important for maintaining the filter performance and the efficiency of the ventilation system over the long term.    <\/span><\/div><div class=\"definition\"><span class=\"title\">Fire damper<\/span><span class=\"description\">A fire damper prevents the spread of fire and smoke through ventilation ducts in the event of a fire. It closes automatically when critical temperatures are reached, thereby increasing building safety. Fire dampers are an important component of many ventilation systems in residential and commercial buildings.  <\/span><\/div><div class=\"definition\"><span class=\"title\">Fresh air<\/span><span class=\"description\">Fresh air supplies living spaces with oxygen and improves well-being. A modern residential ventilation system continuously brings in fresh outdoor air and removes stale air. <\/span><\/div><\/div><\/div><div class=\"definitionsByLetter\" data-letter=\"H\"><span class=\"definitions-header\">H<\/span><div class=\"definition-wrapper\"><div class=\"definition\"><span class=\"title\">Heat exchanger<\/span><span class=\"description\">The heat exchanger is a component used to recover heat (partially also moisture). It transfers heat from the exhaust air to the supply air without mixing the air streams. Plate heat exchangers and rotary heat exchangers are primarily used in residential ventilation systems.  <\/span><\/div><div class=\"definition\"><span class=\"title\">Heat recovery<\/span><span class=\"description\">Heat recovery uses the heat from exhaust air to preheat fresh outdoor air. This helps reduce heating costs and minimize energy losses. Ventilation systems with heat recovery simultaneously provide fresh air, a healthy indoor climate, and high energy efficiency.  <\/span><\/div><div class=\"definition\"><span class=\"title\">Humidity<\/span><span class=\"description\">Moisture is produced by showering, cooking, washing, or breathing. If it is not adequately removed, it can lead to mold and structural damage on buildings. Controlled ventilation reliably regulates humidity.  <\/span><\/div><div class=\"definition\"><span class=\"title\">Humidity, absolute (a.H.)<\/span><span class=\"description\">Absolute humidity indicates how much water vapor is actually contained in one cubic meter of air. It is measured in grams per cubic meter of air (g\/m\u00b3). The higher the absolute humidity, the more moisture is present in the air.  \n<\/span><\/div><\/div><\/div><div class=\"definitionsByLetter\" data-letter=\"I\"><span class=\"definitions-header\">I<\/span><div class=\"definition-wrapper\"><div class=\"definition\"><span class=\"title\">Indoor Climate<\/span><span class=\"description\">Indoor climate refers to temperature, humidity, and air quality. A balanced indoor climate enhances well-being, health, and living comfort. <\/span><\/div><div class=\"definition\"><span class=\"title\">Infiltration<\/span><span class=\"description\">Infiltration refers to the uncontrolled entry of outside air into a building through leaks in the building envelope, such as around windows, doors, or joints. The volume of air entering in this way cannot be precisely controlled and can lead to heat loss, drafts, and reduced energy efficiency. Modern buildings are therefore designed to be as airtight as possible and are equipped with a controlled residential ventilation system.  <\/span><\/div><div class=\"definition\"><span class=\"title\">Inflow<\/span><span class=\"description\">\"Make-up air\" refers to the controlled supply of fresh air into rooms from which air is being extracted. It is an important component of many ventilation systems and ensures a balanced air exchange as well as consistently high air quality. <\/span><\/div><div class=\"definition\"><span class=\"title\">Insect screens<\/span><span class=\"description\">An insect screen prevents insects from entering through intake and exhaust vents without significantly impairing air circulation. It is often used in exterior wall screens or ventilation components and enhances comfort and hygiene in living spaces. <\/span><\/div><div class=\"definition\"><span class=\"title\">Intensive ventilation<\/span><span class=\"description\">Intensive ventilation refers to a short-term increase in ventilation capacity designed to quickly remove large amounts of moisture, odors, or pollutants from indoor spaces. It is used, for example, after showering, cooking, or when there are many people in a room. By increasing air exchange, intensive ventilation improves air quality and helps effectively prevent moisture buildup.  <\/span><\/div><\/div><\/div><div class=\"definitionsByLetter\" data-letter=\"J\"><span class=\"definitions-header\">J<\/span><div class=\"definition-wrapper\"><div class=\"definition\"><span class=\"title\">Joint ventilation<\/span><span class=\"description\">Joint ventilation refers to the natural exchange of air through narrow gaps and leaks in windows and doors caused by wind and temperature differences. While older buildings often benefit from a certain degree of joint ventilation, it is generally insufficient in modern, airtight buildings to ensure consistently good air quality and effective moisture protection. <\/span><\/div><\/div><\/div><div class=\"definitionsByLetter\" data-letter=\"M\"><span class=\"definitions-header\">M<\/span><div class=\"definition-wrapper\"><div class=\"definition\"><span class=\"title\">Minimum air exchange rate<\/span><span class=\"description\">The minimum air change rate refers to the smallest amount of fresh air that must be supplied to a room or building in order to reliably remove moisture, pollutants, and odors. It ensures that a hygienic indoor climate is maintained and that moisture damage and mold growth are prevented. The required minimum air change rate depends, among other things, on the room\u2019s use, the number of occupants, and the building\u2019s structural characteristics.  <\/span><\/div><div class=\"definition\"><span class=\"title\">Moisture Protection<\/span><span class=\"description\">Moisture protection encompasses all measures taken to prevent moisture damage in buildings. Controlled residential ventilation helps reliably remove excess humidity and reduce the risk of mold growth and structural damage on buildings. <\/span><\/div><div class=\"definition\"><span class=\"title\">Mold<\/span><span class=\"description\">Mold often develops as a result of consistently high humidity and inadequate ventilation. A modern residential ventilation system helps remove moisture and prevent mold growth. \n<\/span><\/div><div class=\"definition\"><span class=\"title\">Mold Prevention<\/span><span class=\"description\">Mold prevention refers to all measures taken to prevent mold growth in buildings. Key factors include maintaining controlled humidity levels, ensuring adequate air exchange, and preventing condensation. Modern residential ventilation systems play an important role in protecting both health and the building structure.  \n<\/span><\/div><\/div><\/div><div class=\"definitionsByLetter\" data-letter=\"N\"><span class=\"definitions-header\">N<\/span><div class=\"definition-wrapper\"><div class=\"definition\"><span class=\"title\">Nominal ventilation<\/span><span class=\"description\">Necessary air volume flow according to DIN 1946-6 to guarantee the hygienic requirements as well as to ensure the protection of the building when the users are present (normal operation).<\/span><\/div><\/div><\/div><div class=\"definitionsByLetter\" data-letter=\"O\"><span class=\"definitions-header\">O<\/span><div class=\"definition-wrapper\"><div class=\"definition\"><span class=\"title\">Outdoor air<\/span><span class=\"description\">Outdoor air is the fresh air that enters the building from outside. Modern ventilation systems filter the outdoor air and continuously supply living spaces with fresh air to ensure a comfortable indoor environment. <\/span><\/div><div class=\"definition\"><span class=\"title\">Outdoor air volume flow<\/span><span class=\"description\">The outdoor air flow rate describes the volume of fresh air that a ventilation system draws in from the outside and supplies to a building. It is typically expressed in cubic meters per hour (m\u00b3\/h). It is an important indicator of air quality, moisture protection, and the demand-based design of residential ventilation systems.  <\/span><\/div><div class=\"definition\"><span class=\"title\">Overflow area<\/span><span class=\"description\">Area between the supply air spaces and the exhaust air spaces through which the air flows from the supply diffuser to the exhaust diffuser.<\/span><\/div><\/div><\/div><div class=\"definitionsByLetter\" data-letter=\"P\"><span class=\"definitions-header\">P<\/span><div class=\"definition-wrapper\"><div class=\"definition\"><span class=\"title\">Passive House<\/span><span class=\"description\">A passive house is a highly energy-efficient building with excellent thermal insulation and airtightness. Heating energy requirements are reduced to a minimum through intelligent construction, heat recovery, and controlled residential ventilation. A ventilation system is a central component of the building\u2019s design.  <\/span><\/div><div class=\"definition\"><span class=\"title\">Pollen Filter<\/span><span class=\"description\">A pollen filter removes pollen, fine dust, and other particles from the supply air in a ventilation system. This significantly improves indoor air quality. People with allergies, in particular, benefit from regular filter changes and reliable filter performance.  <\/span><\/div><div class=\"definition\"><span class=\"title\">Pressure loss<\/span><span class=\"description\">Pressure drop refers to the resistance that air must overcome as it flows through ventilation ducts, filters, or components. A low pressure drop contributes to energy-efficient and quiet operation of the ventilation system. <\/span><\/div><div class=\"definition\"><span class=\"title\">Push-pull ventilation<\/span><span class=\"description\">Push-pull ventilation is a decentralized ventilation system in which two units alternately exhaust air to the outside and bring fresh outdoor air into the room. This alternating operation enables a continuous exchange of air. Many push-pull systems also feature heat recovery and are particularly well-suited for renovations and retrofits.  \n<\/span><\/div><\/div><\/div><div class=\"definitionsByLetter\" data-letter=\"R\"><span class=\"definitions-header\">R<\/span><div class=\"definition-wrapper\"><div class=\"definition\"><span class=\"title\">Radon<\/span><span class=\"description\">Radon is a naturally occurring radioactive gas that can seep into buildings from the ground. Regular ventilation helps reduce indoor radon levels. <\/span><\/div><div class=\"definition\"><span class=\"title\">Radon sensor<\/span><span class=\"description\">A radon sensor measures the concentration of radon, a naturally occurring noble gas, in indoor air. Continuous monitoring\u2014especially in basements and areas in direct contact with the ground\u2014helps identify health risks early on. When combined with controlled ventilation, radon levels can be effectively reduced.  <\/span><\/div><div class=\"definition\"><span class=\"title\">Relative Humidity (RH)<\/span><span class=\"description\">Relative humidity describes the percentage of water vapor actually present in the air compared to the maximum amount of moisture the air can hold. It is an important indicator of a healthy indoor climate and should ideally range between 40 and 60% in living spaces.   <\/span><\/div><div class=\"definition\"><span class=\"title\">Residential Ventilation<\/span><span class=\"description\">A residential ventilation system provides fresh air in residential buildings while removing moisture, odors, and pollutants. It improves air quality and helps prevent mold growth.   <\/span><\/div><\/div><\/div><div class=\"definitionsByLetter\" data-letter=\"S\"><span class=\"definitions-header\">S<\/span><div class=\"definition-wrapper\"><div class=\"definition\"><span class=\"title\">Sensor Control<\/span><span class=\"description\">A sensor-based control system automatically regulates ventilation systems based on measured values such as humidity, CO\u2082 levels, or temperature. This demand-based control improves air quality, increases energy efficiency, and ensures a consistently comfortable indoor climate. <\/span><\/div><div class=\"definition\"><span class=\"title\">Shock ventilation<\/span><span class=\"description\">Shock ventilation is an effective method of window ventilation in which windows are opened fully for a few minutes. This quickly replaces stale, humid air with fresh outdoor air. Compared to windows left tilted open all the time, intermittent ventilation ensures better air exchange and helps reduce energy loss and mold growth.  <\/span><\/div><div class=\"definition\"><span class=\"title\">Single-room ventilation<\/span><span class=\"description\">A single-room ventilation system provides targeted air exchange in individual rooms such as bathrooms, toilets, bedrooms, or basements. Unlike central ventilation systems, it operates independently in each room and can often be installed without the need for complex air ducts. Single-room ventilation systems improve air quality, reduce humidity, and help prevent mold growth. They are particularly well-suited for renovations, modernizations, and retrofitting in existing buildings.   <\/span><\/div><div class=\"definition\"><span class=\"title\">Summer Ventilation<\/span><span class=\"description\">Summer ventilation ensures fresh air and a comfortable indoor climate even during the warmer months. Thanks to intelligent controls, ventilation systems can specifically utilize cooler outside air to reduce the buildup of heat indoors. This enhances living comfort even on hot days.  <\/span><\/div><div class=\"definition\"><span class=\"title\">Supply air<\/span><span class=\"description\">All preheated air supplied to the rooms [in m3\/h].<\/span><\/div><\/div><\/div><div class=\"definitionsByLetter\" data-letter=\"V\"><span class=\"definitions-header\">V<\/span><div class=\"definition-wrapper\"><div class=\"definition\"><span class=\"title\">Vent<\/span><span class=\"description\">A vent is an air inlet or outlet (valve) in a ventilation system through which air enters or is exhausted from rooms in a controlled manner. Vents ensure even air distribution and are essential for efficient residential ventilation and a comfortable indoor climate. <\/span><\/div><div class=\"definition\"><span class=\"title\">Ventilation<\/span><span class=\"description\">Exchange of indoor air for outdoor air.<\/span><\/div><div class=\"definition\"><span class=\"title\">Volume flow<\/span><span class=\"description\">The airflow rate indicates how much air a ventilation system moves per hour. It is measured in cubic meters per hour (m\u00b3\/h). An optimal airflow rate ensures adequate air exchange, helps prevent moisture buildup, and contributes to a healthy and comfortable indoor environment.  <\/span><\/div><\/div><\/div><div class=\"definitionsByLetter\" data-letter=\"W\"><span class=\"definitions-header\">W<\/span><div class=\"definition-wrapper\"><div class=\"definition\"><span class=\"title\">Window ventilation<\/span><span class=\"description\">Window ventilation refers to the exchange of air achieved by opening or tilting windows. Through intermittent or cross-ventilation, stale air, moisture, and odors are removed from the room and replaced with fresh outdoor air. Window ventilation is a simple way to improve air quality, but it requires residents to ventilate regularly and intentionally. The air exchange in this process cannot be controlled.   \n <\/span><\/div><\/div><\/div><\/div><\/div>\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_437065770 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t","protected":false},"excerpt":{"rendered":"<p>The most important terms in ventilation technology, from A for &#8220;exhaust air&#8221; to Z for &#8220;supply air,&#8221; explained simply.<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-blank.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-2546","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.8.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ventilation glossary - LIMODOR<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.limodor.com\/en\/ventilation-glossary\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ventilation glossary - 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