---
title: Science behind the innovation (2)
description: All of the science behind biological air purifiers (2)
---

# Naava Science

This is an archived blog. You can still read the content, but it's not being updated.

[Go to new site](https://www.naava.io/science-technology)

![](https://www.naava.io/hs-fs/hubfs/naava-2021-theme-assets/example-images/default-hero-image.jpg?width=2560&name=default-hero-image.jpg)

![kim2010.jpeg](https://www.naava.io/hs-fs/hubfs/Images/Naava%20Media/Science/2017-09/kim2010.jpeg?width=600&name=kim2010.jpeg)

Science

### [Human brain activation in response to visual stimulation with rural and urban scenery pictures: A functional magnetic resonance imaging study](https://www.naava.io/science/brain-activation-response-to-visual-rural-urban-stimuli)

Rapid urbanization has caused environmental changes, which threaten human health and quality of life. Studies have ...

![](https://www.naava.io/hs-fs/hubfs/Blog/pexels-photo-web.jpg?width=600&name=pexels-photo-web.jpg)

Science

### [Symptoms in relation to chemicals and dampness in newly built dwellings](https://www.naava.io/science/symptoms-in-relation-to-chemicals-and-dampness-in-newly-built-dwellings)

Airtightness in buildings has increased during the last decades, and the trend has led to an increase in indoor air ...

![](https://www.naava.io/hs-fs/hubfs/Blog/people-coffee-tea-meeting-web.jpg?width=600&name=people-coffee-tea-meeting-web.jpg)

Science

### [Indoor Volatile Organic Compounds and chemical sensitivity reactions](https://www.naava.io/science/indoor-volatile-organic-compounds-and-chemical-sensitivity-reactions)

Studies of unexplained symptoms observed in chemically sensitive people have shown a relationship between neurological ...

![](https://www.naava.io/hs-fs/hubfs/Blog/Science_blog/Humidity.jpg?width=600&name=Humidity.jpg)

Science

### [Indirect health effects of relative humidity in indoor environments](https://www.naava.io/science/indirect-health-effects-of-relative-humidity-in-indoor-environments)

Relative humidity of indoor environments has both direct and indirect effects on health and comfort. Direct effects ...

![palmer2010.jpg](https://www.naava.io/hs-fs/hubfs/Images/Naava%20Media/Science/2017-07/palmer2010.jpg?width=600&name=palmer2010.jpg)

Science

### [An ecological valence theory of human color preference](https://www.naava.io/science/an-ecological-valence-theory-of-human-color-preference)

This article (2010) aims to explain why people prefer some colors over others with an ecological valence theory. Color ...

![](https://www.naava.io/hs-fs/hubfs/Images/Naava%20Media/News/2018-06/svea-ekonomi-3-naava.jpg?width=600&name=svea-ekonomi-3-naava.jpg)

Science

### [Natural environments—healthy environments? An exploratory analysis of the relationship between greenspace and health.](https://www.naava.io/science/natural-environments-healthy-environments-an-exploratory-analysis-of-the-relationship-between-greenspace-and-health)

This study (2003) tested whether people living in greener areas are healthier compared to those living in less green ...

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