---
title: DIRECT AND INDIRECT ROOM RADIATION
url: "https://www.purion.de/en/areas/air/topics/direct-and-indirect-room-radiation/"
date: 2025-01-13
modified: 2025-02-06
lastUpdated: 2025-02-06
---

# DIRECT AND INDIRECT ROOM RADIATION

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4. Topics
5. DIRECT AND INDIRECT ROOM RADIATION

   DIRECT AND INDIRECT ROOM RADIATION
------------------------------------

 **In general, the room air is irradiated with relatively low UV irradiance. The highest efficiency in air disinfection is achieved when each beam travels the greatest possible distance before being absorbed by an object surface.**

In order to use the UV radiation efficiently, the lamps are equipped with reflectors made of ultra-pure aluminum. The reflector directs the radiation towards the area to be irradiated.

**How to use the UV lamps effectively**
The disinfection fittings can be used for indirect (and/or direct) irradiation of rooms, for disinfecting workplaces, as a UV radiation barrier between two rooms or in air conditioning systems.

**Lights for indirect use**
These lights are suitable for disinfecting the room air while people are in the room. They must be installed in such a way that people cannot be hit by the radiation and it is not possible to see into the lamp.

**Luminaires for direct use**
When directly irradiating rooms, it must be ensured that no persons are present in the room during the irradiation time

**Attention:**
UV radiation is dangerous for skin and eyes! Eyes and skin must be protected accordingly. It should be noted that the user is responsible for the safety of persons in the room.

**DOWNLOAD PURION® DATA SHEETS**

[DATA SHEET AIRPURION 17](https://www.purion.de/fileadmin/user_upload/user_upload/pdf/english/data_sheets/airpurion/AIRPURION_17_DS_EN.pdf)

[DATA SHEET AIRPURION 36](https://www.purion.de/fileadmin/user_upload/user_upload/pdf/english/data_sheets/airpurion/AIRPURION_36_DS_EN.pdf)

[DATA SHEET AIRPURION 48](https://www.purion.de/fileadmin/user_upload/user_upload/pdf/english/data_sheets/airpurion/AIRPURION_48_DS_EN.pdf)

[DATA SHEET AIRPURION 90](https://www.purion.de/fileadmin/user_upload/user_upload/pdf/english/data_sheets/airpurion/AIRPURION_90_DS_EN.pdf)

---

  Further product portfolio
===========================

 - [![purion uv lampen](https://www.purion.de/fileadmin/_processed_/3/6/csm_purion_uv_lampen_5e3e8ea607.jpg)](https://www.purion.de/en/areas/air/equipment/purion-uv-lamps/)### [ PURION UV LAMPS ](https://www.purion.de/en/areas/air/equipment/purion-uv-lamps/)

    PURION low-pressure UV lamps work without the formation of ozone

    [ More ](https://www.purion.de/en/areas/air/equipment/purion-uv-lamps/)
- [![splitterschutz](https://www.purion.de/fileadmin/_processed_/c/c/csm_splitterschutz_ce021c0e7c.jpg)](https://www.purion.de/en/areas/air/equipment/splitter-protection/)### [ SPLITTER PROTECTION ](https://www.purion.de/en/areas/air/equipment/splitter-protection/)

    Splinter protection is particularly important for use in food production and processing

    [ More ](https://www.purion.de/en/areas/air/equipment/splitter-protection/)
- [![](https://www.purion.de/fileadmin/_processed_/2/8/csm_Service_kit_karusell_3545883333.jpg)](https://www.purion.de/en/areas/air/equipment/service-kit/)### [ SERVICE KIT ](https://www.purion.de/en/areas/air/equipment/service-kit/)

    The PURION Service KIT enables convenient and reliable cleaning

    [ More ](https://www.purion.de/en/areas/air/equipment/service-kit/)

  Information about our company
===============================

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    Scientific background to the procedures we use.

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 ### WE ARE HAPPY TO ADVISE YOU!

Do you have any questions or would you like personalised advice?

- [+49 (0)3682 / 479087](tel:+4903682479087)
- [+49 (0)3682 / 479086](tel:+4903682479086)
- <uv-technology@purion.de>

[CONTACT](https://www.purion.de/en/contact-us/consulting/)