--- 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. image: https://actualites.nexelec.fr/hubfs/D%C3%A9tecteur%20de%20CO.png --- [![Version FR](https://actualites.nexelec.fr/hubfs/Template%20-%20Winbound/Template%20Blog/france.svg)FR](https://actualites.nexelec.fr/?hsLang=en) - [![world](https://actualites.nexelec.fr/hubfs/Template%20-%20Winbound/Template%20Blog/web.svg)Back to the website ](https://nexelec.eu/en/) - [Newsletter](https://actualites.nexelec.fr/en/comment-nettoyer-et-entretenir-votre-d%C3%A9tecteur-de-co#formulaire_ancre) [![logo Nexelec](https://actualites.nexelec.fr/hubfs/Template%20-%20Winbound/Template%20Blog/logo_Nexelec.svg) ](https://actualites.nexelec.fr/en) [Air quality](https://actualites.nexelec.fr/en/tag/air-quality) [Fire safety](https://actualites.nexelec.fr/en/tag/fire-safety) [Smart building](https://actualites.nexelec.fr/en/tag/smart-building) [Energy efficiency](https://actualites.nexelec.fr/en/tag/energy-efficiency) [IoT infrastructure](https://actualites.nexelec.fr/en/tag/iot-infrastructure) ☰ **Invisible, odourless and potentially deadly, carbon monoxide (CO) is a dangerous gas that can be released silently in a home. CO detectors are designed to give a rapid warning in the event of an abnormal concentration, but regular maintenance is essential to ensure their effectiveness.** **Dust, draughts, chemicals... several factors can affect detection or trigger an unjustified alert. Adopting the right reflexes not only extends the life of the device, but also ensures the safety of the occupants. Here is everything you need to know to properly maintain your CO detector.** ![](https://actualites.nexelec.fr/hubfs/D%C3%A9tecteur%20de%20CO.png) [![Version FR](https://actualites.nexelec.fr/hubfs/Template%20-%20Winbound/Template%20Blog/france.svg)FR]({type=EXTERNAL,%20content_id=null,%20href=,%20href_with_scheme=}) ![flèche gauche](https://actualites.nexelec.fr/hubfs/Template%20-%20Winbound/Template%20Blog/icon-long-arrow-left.svg) [News](https://actualites.nexelec.fr/en) ![flèche droite](https://actualites.nexelec.fr/hubfs/Template%20-%20Winbound/Template%20Blog/icon-right-blue.svg) [Fire safety](https://actualites.nexelec.fr/en/tag/fire-safety) Published on 29 April 2025 # How to clean and maintain your CO detector? ##### In this article: - [AIR](https://nexelec.eu/en/produit/air-2/) - [AIR+](https://nexelec.eu/en/produit/air/) - [SECURE](https://nexelec.eu/en/produit/secure-2/) - [SECURE+](https://nexelec.eu/en/produit/secure/) ## **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.   [![White Book](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/26277964/interactive-203875668167.png) ](https://actualites.nexelec.fr/hs/cta/wi/redirect?encryptedPayload=AVxigLKEp0XfudMRK%2FYpzIjmj56da9Ndtjni%2Fh3LHYLtTpppBPPZLRsPsZHC%2FeO%2BLivsEsaLlpK2BqUPikWjOcJOrA5lwE9b0QUQiJ2dsJvs8iCqqooo5oWllNCzGjAz6xHrbrwHDOKOaS4ezgRxaLXqz67c5Ndsr2VnPxVYgM%2BogqBYnwwpzEnhWMs834daF0VZnVWP8bdH6Pvz8E3szD%2Fqpw2tIs73D8PZMD%2FToQfMewEHCBE9zINE8tR4BQ%3D%3D&webInteractiveContentId=203875668167&portalId=26277964&hsLang=en) ** ** ## **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.   [![White Book](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/26277964/interactive-203875668167.png) ](https://actualites.nexelec.fr/hs/cta/wi/redirect?encryptedPayload=AVxigLKEp0XfudMRK%2FYpzIjmj56da9Ndtjni%2Fh3LHYLtTpppBPPZLRsPsZHC%2FeO%2BLivsEsaLlpK2BqUPikWjOcJOrA5lwE9b0QUQiJ2dsJvs8iCqqooo5oWllNCzGjAz6xHrbrwHDOKOaS4ezgRxaLXqz67c5Ndsr2VnPxVYgM%2BogqBYnwwpzEnhWMs834daF0VZnVWP8bdH6Pvz8E3szD%2Fqpw2tIs73D8PZMD%2FToQfMewEHCBE9zINE8tR4BQ%3D%3D&webInteractiveContentId=203875668167&portalId=26277964&hsLang=en)   ** ** ## **Test operation regularly** Once a month, press the [detector](https://www.landingpages.nexelec.fr/en/telechargement-livreblanc-le-monoxyde-de-carbone?hsCtaAttrib=203875668167&hsLang=en) '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&hsLang=en)   ** ** ## **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&hsLang=en). 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&hsLang=en)   [![White Book](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/26277964/interactive-203875668167.png) ](https://actualites.nexelec.fr/hs/cta/wi/redirect?encryptedPayload=AVxigLKEp0XfudMRK%2FYpzIjmj56da9Ndtjni%2Fh3LHYLtTpppBPPZLRsPsZHC%2FeO%2BLivsEsaLlpK2BqUPikWjOcJOrA5lwE9b0QUQiJ2dsJvs8iCqqooo5oWllNCzGjAz6xHrbrwHDOKOaS4ezgRxaLXqz67c5Ndsr2VnPxVYgM%2BogqBYnwwpzEnhWMs834daF0VZnVWP8bdH6Pvz8E3szD%2Fqpw2tIs73D8PZMD%2FToQfMewEHCBE9zINE8tR4BQ%3D%3D&webInteractiveContentId=203875668167&portalId=26277964&hsLang=en)   ### This news may interest you Nexelec's news ### [LoRaWAN-Connected Thermostatic Head: How to Control Heating in a Multi-Unit Building?](https://actualites.nexelec.fr/en/t%C3%AAte-thermostatique-connect%C3%A9e-lorawan-comment-piloter-le-chauffage-dun-b%C3%A2timent-collectif?hsLang=en) ### [LoRaWAN Thermostatic Head: FLOW PRO and FLOW CORE for Smart Radiator Control](https://actualites.nexelec.fr/en/t%C3%AAte-thermostatique-lorawan-flow-pro-et-flow-core-pour-une-r%C3%A9gulation-connect%C3%A9e-des-radiateurs?hsLang=en) ### [How to make buildings sustainable and healthy](https://actualites.nexelec.fr/en/comment-rendre-les-b%C3%A2timents-durables-et-sains?hsLang=en) #### Subscribe to the newsletter [![logo Nexelec](https://actualites.nexelec.fr/hubfs/Template%20-%20Winbound/Template%20Blog/logo_Nexelec.svg)](https://nexelec.eu/en/) Rue Léon Griffon Park Avenue 16C 56890 Saint-Avé France #### Tags - [Air quality](https://actualites.nexelec.fr/en/tag/air-quality) - [Fire safety](https://actualites.nexelec.fr/en/tag/fire-safety) - [Smart Building](https://actualites.nexelec.fr/en/tag/smart-building) - [Energy efficiency](https://actualites.nexelec.fr/en/tag/energy-efficiency) - [IoT infrastructure](https://actualites.nexelec.fr/en/tag/iot-infrastructure) - [Others](https://actualites.nexelec.fr/en/tag/others) #### Terms of use - [Terms if use](https://nexelec.eu/en/terms-of-use/) - [Privacy policy](https://nexelec.eu/en/privacy-policy/) - [Terms & Conditions](https://nexelec.eu/en/terms-conditions/) - Follow us - [![YouTube](https://actualites.nexelec.fr/hubfs/Template%20-%20Winbound/Template%20Blog/youtube%20(1).svg)](https://www.youtube.com/channel/UClL1sWR95bljSOTYtZot5Jg) - [![LinkedIn](https://actualites.nexelec.fr/hubfs/Template%20-%20Winbound/Template%20Blog/Groupe%201828.svg)](https://www.linkedin.com/company/nexelec/) © Nexelec 2026 - All rights reserved ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Louise", "url" : "https://actualites.nexelec.fr/en/author/louise" }, "dateModified" : "2025-10-24T09:38:32.629Z", "datePublished" : "2025-04-29T05:00:00.000Z", "headline" : "How to clean and maintain your CO detector?", "image" : [ "https://actualites.nexelec.fr/hubfs/D%C3%A9tecteur%20de%20CO.png" ], "mainEntityOfPage" : { "@id" : "https://actualites.nexelec.fr/en/comment-nettoyer-et-entretenir-votre-détecteur-de-co", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://actualites.nexelec.fr/hubfs/Logo_symbole_Noir_png-1.png" }, "name" : "Nexelec" } } ```