{"id":4968,"date":"2026-10-01T08:00:59","date_gmt":"2026-10-01T06:00:59","guid":{"rendered":"https:\/\/www.cla-utek.it\/?p=4968"},"modified":"2026-09-29T15:33:16","modified_gmt":"2026-09-29T13:33:16","slug":"indoor-co%e2%82%82-what-does-it-really-tell-us-about-air-quality","status":"publish","type":"post","link":"https:\/\/www.cla-utek.it\/en\/2026\/10\/indoor-co%e2%82%82-what-does-it-really-tell-us-about-air-quality\/","title":{"rendered":"Indoor CO\u2082: What Does It Really Tell Us About Air Quality?"},"content":{"rendered":"<p class=\"isSelectedEnd\">The quality of the air we breathe every day is not always perceptible. However, one parameter can help us understand when air exchange in an occupied space may not be sufficient: the concentration of carbon dioxide, or CO\u2082.<\/p>\n<p class=\"isSelectedEnd\">CO\u2082 is produced primarily by human respiration. In an enclosed and occupied space, its concentration tends to increase when the air exchange rate is not adequate for the number of people present and the characteristics of the room.<\/p>\n<p class=\"isSelectedEnd\">For this reason, measuring CO\u2082 can be useful for assessing how ventilation is being managed, for example in bedrooms, offices, and meeting rooms.<\/p>\n<p class=\"isSelectedEnd\">But there is an important point to keep in mind: CO\u2082 does not tell the whole story. A low CO\u2082 level alone does not guarantee that the air is free from dust, volatile organic compounds, or other contaminants. Likewise, CO\u2082 concentration is also influenced by occupancy levels and outdoor conditions.<\/p>\n<h2>What role does MVHR play?<\/h2>\n<p class=\"isSelectedEnd\">A mechanical ventilation with heat recovery (MVHR) system promotes air exchange through airflow rates defined and managed according to the system design. When correctly sized and adjusted, it can help limit CO\u2082 accumulation in occupied spaces.<\/p>\n<p class=\"isSelectedEnd\">Sensors can also support demand-controlled ventilation by adjusting airflow according to the conditions detected, when the system is designed to operate in this way.<\/p>\n<p><strong>The key takeaway:<\/strong> CO\u2082 is a useful indicator for understanding air exchange, but it is not a universal measure of indoor air quality.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The quality of the air we breathe every day is not always perceptible. However, one parameter can help us understand when air exchange in an occupied space may not be sufficient: the concentration of carbon dioxide, or CO\u2082. CO\u2082 is produced primarily by human respiration. In an enclosed and occupied space, its concentration tends to [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":4969,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[106],"tags":[],"class_list":["post-4968","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-online-training"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Indoor CO\u2082: What Does It Really Tell Us About Air Quality? | ClaUtek<\/title>\n<meta name=\"description\" content=\"Indoor CO\u2082: discover what its concentration indicates, how to interpret it, and what role MVHR can play in ensuring effective air exchange\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.cla-utek.it\/en\/2026\/10\/indoor-co%e2%82%82-what-does-it-really-tell-us-about-air-quality\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Indoor CO\u2082: What Does It Really Tell Us About Air Quality? | ClaUtek\" \/>\n<meta property=\"og:description\" content=\"Indoor CO\u2082: discover what its concentration indicates, how to interpret it, and what role MVHR can play in ensuring effective air exchange\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.cla-utek.it\/en\/2026\/10\/indoor-co%e2%82%82-what-does-it-really-tell-us-about-air-quality\/\" \/>\n<meta property=\"og:site_name\" content=\"ClaUtek\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-01T06:00:59+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.cla-utek.it\/wp-content\/uploads\/2026\/09\/ChatGPT-Image-29-set-2026-15_03_11-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1672\" \/>\n\t<meta property=\"og:image:height\" content=\"941\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Francesca Lapsus\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.cla-utek.it\\\/en\\\/2026\\\/10\\\/indoor-co%e2%82%82-what-does-it-really-tell-us-about-air-quality\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.cla-utek.it\\\/en\\\/2026\\\/10\\\/indoor-co%e2%82%82-what-does-it-really-tell-us-about-air-quality\\\/\"},\"author\":{\"name\":\"Francesca Lapsus\",\"@id\":\"https:\\\/\\\/www.cla-utek.it\\\/en\\\/#\\\/schema\\\/person\\\/dbdf70982d0df960dd641e011200340f\"},\"headline\":\"Indoor CO\u2082: What Does It Really Tell Us About Air Quality?\",\"datePublished\":\"2026-10-01T06:00:59+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.cla-utek.it\\\/en\\\/2026\\\/10\\\/indoor-co%e2%82%82-what-does-it-really-tell-us-about-air-quality\\\/\"},\"wordCount\":249,\"image\":{\"@id\":\"https:\\\/\\\/www.cla-utek.it\\\/en\\\/2026\\\/10\\\/indoor-co%e2%82%82-what-does-it-really-tell-us-about-air-quality\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.cla-utek.it\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/ChatGPT-Image-29-set-2026-15_03_11-1.png\",\"articleSection\":[\"Air quality: something to learn about\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.cla-utek.it\\\/en\\\/2026\\\/10\\\/indoor-co%e2%82%82-what-does-it-really-tell-us-about-air-quality\\\/\",\"url\":\"https:\\\/\\\/www.cla-utek.it\\\/en\\\/2026\\\/10\\\/indoor-co%e2%82%82-what-does-it-really-tell-us-about-air-quality\\\/\",\"name\":\"Indoor CO\u2082: What Does It Really Tell Us About Air Quality? 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