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Posts Tagged ‘indoor air quality (IAQ)’

September 24, 2021

Air in schools!

Decades of research in air quality and ventilation in schools! Several thousand years ago, the first so-called schools were founded, and the school education of people started. Today, education can take up to ¼ of human life, and most of the time is spent indoors – in school buildings. Environment – inside (indoor) and around […]...

AUTHOR: Petra Vladykova Bednarova

August 18, 2021

IEQ = IAQ + ITQ + ILQ + ISQ

All mighty equation! The equation is about indoor environmental quality (IEQ) composing from indoor air quality (IAQ), indoor thermal quality (ITQ – also known as thermal comfort), indoor lighting quality…...

AUTHOR: Petra Vladykova Bednarova

July 29, 2021

Indoor thermal quality also known as thermal comfort!

How to measure indoor climate? In the previous post “How to measure indoor climate? IAQ in focus!” (link here) we talked about indoor environmental quality (IEQ) composing from indoor air…...

AUTHOR: Petra Vladykova Bednarova

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…...

AUTHOR: Petra Vladykova Bednarova

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…...

AUTHOR: Petra Vladykova Bednarova

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…...

AUTHOR: Petra Vladykova Bednarova

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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…...

AUTHOR: Petra Vladykova Bednarova

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…...

AUTHOR: Petra Vladykova Bednarova

October 25, 2019

New case study added! Vaasa Vocational Institute in Finland!

Are you interested in real proof that DCV system is working? Do you like to have scientific proof that the ventilation systems installed in real buildings are working? Do you…...

AUTHOR: Petra Vladykova Bednarova

July 24, 2018

Health and well-being in indoor environment!

Our environmental requirements: Health, well-being and indoor environment! Human physiology is not adapted to the climatic conditions in temperate and polar latitudes, although parts of these regions have been populated…...

AUTHOR: Petra Vladykova Bednarova

February 3, 2017

Why do we warm up the house?

Heat balance and indoor air quality Heat balance means that when all the “free heat” given off by people, appliances and solar radiation is not enough to provide comfortable indoor…...

AUTHOR: Petra Vladykova Bednarova