What is IEQ? Indoor environmental quality (IEQ) refers to the environmental conditions inside regularly occupied space and it is determined by many factors, including indoor air quality (IAQ), indoor thermal quality (ITQ – also known as thermal comfort), indoor lighting quality (ILQ – also known as visual comfort) and indoor sound quality (ISQ – also […]...
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Archive for the ‘News’ Category
June 23, 2021
Transitioning from IAQ to IEQ!
In short! With an extreme focus and rapid development in recent decades (in research, industries and all types of buildings), indoor air quality (IAQ) is often misused as a substitute…...
May 21, 2021
Can only 12 parameters evaluate the IEQ in buildings?
What are IEQ and TAIL? The indoor environmental quality (IEQ) is a general indicator of the quality of conditions inside a building. IEQ can be defined and determined by various…...
April 27, 2021
Ventilation is a mediating factor, not a cause!
Ventilation in buildings! Ventilation is an important component of any building, even if achieved by opening windows (adventitious ventilation) or infiltration (unintentional ventilation). It is without a doubt recognized as…...
March 25, 2021
Ventilation: How buildings breathe?
Buildings, as humans, need to breathe! Like the lungs, buildings need to be able to breathe to make sure that fresh air comes in and dirty air goes out. There…...
February 26, 2021
Relative humidity as the main signal for comfort indoors!
Requirements for relative humidity! Humidity definition dates back to the 1300s and is widely proved to be one of the important factors in buildings. Together with temperature, relative humidity is…...
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January 29, 2021
What is the human daily intake of air, water and food?
Human daily intake of food, water and air! Jan Vilhelm Bakke in the AIR Swegon Air Academy book (published in 2008) stated: “On average, an adult male with a sedentary…...
December 21, 2020
Merry Christmas and Happy New Year! Download Swegon Air Academy – Part C in PDF as a gift!
Recap of 2020! The year 2020 was… I guess all about covid, social distancing and so many changes! Everyone and every company are talking about working in a safe environment…...
November 26, 2020
We spent 90% time indoors! Who said it?
The very much-quoted statistics: 90% time indoors! Surprisingly there were many studies performed at the 20th-century gathering human activity patterns and human exposure data. And one marginal study was published…...
October 26, 2020
Passive house: tennis hall, ice hockey and car dealership?
A question for you: what type of building can be built as a passive house? Passive house buildings have started to be built in the 1990s as new thinking from…...
October 16, 2020
Why do we ventilate?
Have you ever wondered why do we ventilate our houses? Throughout history, humans always looked for better living conditions and healthier air. For the past several decades, indoor air quality…...