---
title: Science behind the innovation | IEQ
description: IEQ | All of the science behind biological air purifiers
---

# Archive : IEQ

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

![](https://www.naava.io/hs-fs/hubfs/Blog/Science_blog/ENA34M3UOO.jpg?width=600&name=ENA34M3UOO.jpg)

Science

### [Risk of sick leave associated with outdoor air supply rate, humidification, and occupant complaints](https://www.naava.io/science/risk-of-sick-leave-associated-with-outdoor-air-supply-rate-humidification-and-occupant-complaints)

This study (2000) analyzed sick leave records for 3,720 hourly employees of a Massachusetts manufacturer in 40 ...

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