---
title: How to clean and maintain your CO detector?
description: Invisible, odorless and potentially lethal, carbon monoxide (CO) is a dangerous gas that can be released silently in the home.
---

[Nexelec US ](https://actualites.nexelec.fr/us/nexelec)

# [How to clean and maintain your CO detector?](https://actualites.nexelec.fr/us/nexelec/how-to-clean-and-maintain-your-co-detector)

 Written by [Louise](https://actualites.nexelec.fr/us/nexelec/author/louise) | Jan 14, 2026 10:04:38 AM

## **Always read the user manual**

Before handling, read the manufacturer's recommendations: each model may have specific maintenance, cleaning or positioning requirements.  
Observe instructions on use limitations, ambient temperature and areas to be avoided.

 

<https://actualites.nexelec.fr/hs/cta/wi/redirect?encryptedPayload=AVxigLIjC3oqUurzvWVDIzh9BwtzoofHuCKAXEgeKZK5vALxgms93BKVhi6iwtVxFXqqZsOeyaWl2%2BfHg7C8Xhc30s5GPF%2B6AM7q8lRqqsk5gsExymSjGPb4kP7S0YD%2FbTJOS8FDzWuElKOqg4qk4fjelo4fzqbvB2X2e%2F6jOa1VQXUqbHjwAgjD1mpUV7bKEP26spk3j4s1RA%2FJZj7txfK7a8YAF7JhN1NwdWInKYrep46p98bYh71rz576eQ%3D%3D&webInteractiveContentId=203875668167&portalId=26277964>

** **

## **Clean your detector once a month**

Monthly cleaning is recommended to prevent the build-up of dust that can interfere with the sensors.  
Here's how:

- Use a clean, dry cloth or the brush attachment of your vacuum cleaner.
- Do not apply any chemicals, solvents or detergents.
- Never paint the detector.

 

** **

## **Beware of sources of interference**

Certain elements may cause the detector to trip unexpectedly:

- A direct artificial light source (neon, powerful LEDs)
- Close proximity to a ventilation, air-conditioning or convector outlet
- Rapid temperature variations

If necessary, change the detector's location according to the manufacturer's recommendations.

 

<https://actualites.nexelec.fr/hs/cta/wi/redirect?encryptedPayload=AVxigLIjC3oqUurzvWVDIzh9BwtzoofHuCKAXEgeKZK5vALxgms93BKVhi6iwtVxFXqqZsOeyaWl2%2BfHg7C8Xhc30s5GPF%2B6AM7q8lRqqsk5gsExymSjGPb4kP7S0YD%2FbTJOS8FDzWuElKOqg4qk4fjelo4fzqbvB2X2e%2F6jOa1VQXUqbHjwAgjD1mpUV7bKEP26spk3j4s1RA%2FJZj7txfK7a8YAF7JhN1NwdWInKYrep46p98bYh71rz576eQ%3D%3D&webInteractiveContentId=203875668167&portalId=26277964>

 

** **

## **Test operation regularly**

Once a month, press the [detector](https://www.landingpages.nexelec.fr/en/telechargement-livreblanc-le-monoxyde-de-carbone?hsCtaAttrib=203875668167) 's test button to make sure the alarm is working properly.  
This test validates the state of the electronic components and [ensures that the device is always operational.](https://www.landingpages.nexelec.fr/en/telechargement-livreblanc-le-monoxyde-de-carbone?hsCtaAttrib=203875668167)

 

** **

## **Who is responsible for maintenance?**

In the case of residential property, the occupant (tenant or owner-occupier) is responsible for maintaining the [CO detector](https://www.landingpages.nexelec.fr/en/telechargement-livreblanc-le-monoxyde-de-carbone?hsCtaAttrib=203875668167).  
This responsibility is part of the ALUR law, which imposes certain [obligations in terms of housing safety.](https://www.landingpages.nexelec.fr/en/telechargement-livreblanc-le-monoxyde-de-carbone?hsCtaAttrib=203875668167)

 

<https://actualites.nexelec.fr/hs/cta/wi/redirect?encryptedPayload=AVxigLIjC3oqUurzvWVDIzh9BwtzoofHuCKAXEgeKZK5vALxgms93BKVhi6iwtVxFXqqZsOeyaWl2%2BfHg7C8Xhc30s5GPF%2B6AM7q8lRqqsk5gsExymSjGPb4kP7S0YD%2FbTJOS8FDzWuElKOqg4qk4fjelo4fzqbvB2X2e%2F6jOa1VQXUqbHjwAgjD1mpUV7bKEP26spk3j4s1RA%2FJZj7txfK7a8YAF7JhN1NwdWInKYrep46p98bYh71rz576eQ%3D%3D&webInteractiveContentId=203875668167&portalId=26277964>

 

[View full post](https://actualites.nexelec.fr/us/nexelec/how-to-clean-and-maintain-your-co-detector)

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