{"id":13873,"date":"2025-05-25T18:49:29","date_gmt":"2025-05-25T16:49:29","guid":{"rendered":"https:\/\/www.brasseurs-air-re2020.com\/ceiling-fans-and-re2020-how-to-optimise-carbon-impact\/"},"modified":"2026-02-17T21:08:57","modified_gmt":"2026-02-17T20:08:57","slug":"ceiling-fans-and-re2020-how-to-optimise-carbon-impact","status":"publish","type":"post","link":"https:\/\/www.brasseurs-air-re2020.com\/en\/ceiling-fans-and-re2020-how-to-optimise-carbon-impact\/","title":{"rendered":"Ceiling fans and RE2020: how to optimise carbon impact?"},"content":{"rendered":"
\"image_pdf\"T\u00e9l\u00e9charger l\u2019article en PDF<\/span><\/a><\/div>

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In May 2025, the planet’s CO2<\/sub> watchdog, the Mauna Loa volcano observatory in Hawaii[i]<\/a>, delivered its verdict: carbon dioxide levels had reached 428 particles per million<\/strong> (ppm). This value does not correspond to an exceptional episode, but rather to a steady increase<\/strong>, given that the first measurements date back to 1958.<\/p>\n

[\/et_pb_text][et_pb_image src=”https:\/\/www.brasseurs-air-re2020.com\/wp-content\/uploads\/2026\/02\/evolution-de-la-concentration-en-coe-mauna-loa-01-GB.jpg” alt=”Figure 1: Relationship between sound power and sound pressure” title_text=”evolution-de-la-concentration-en-coe\u0301-mauna-loa-01″ _builder_version=”4.27.4″ _module_preset=”default” custom_margin=”||10px||false|false” global_colors_info=”{}”][\/et_pb_image][et_pb_text ul_item_indent=”25px” _builder_version=”4.27.4″ _module_preset=”default” header_2_font=”|600|||||||” header_2_text_color=”gcid-70ff693f-6f97-4074-be90-9adb196c4afe” header_3_font=”|600|||||||” header_3_text_color=”gcid-70ff693f-6f97-4074-be90-9adb196c4afe” header_4_font=”|600|||||||” custom_margin=”||15px||false|false” custom_padding=”||0px|||” global_colors_info=”{%22gcid-70ff693f-6f97-4074-be90-9adb196c4afe%22:%91%22header_3_text_color%22,%22header_3_text_color%22,%22header_2_text_color%22%93}”]<\/p>\n

Figure 1: Changes in CO2 concentrations from 1958 to 2025<\/em><\/p>\n

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For its part, the IPCC’s recent AR6 report shows in its SSP8.5 scenario[ii]<\/a> that the concentration of CO2 in the atmosphere could rise to 1135 ppm by 2100..<\/p>\n

[\/et_pb_text][et_pb_image src=”https:\/\/www.brasseurs-air-re2020.com\/wp-content\/uploads\/2026\/02\/co2-2100-giec-01-GB.jpg” alt=”Figure 1: Relationship between sound power and sound pressure” title_text=”co2-2100-giec-01″ _builder_version=”4.27.4″ _module_preset=”default” custom_margin=”||10px||false|false” global_colors_info=”{}”][\/et_pb_image][et_pb_text ul_item_indent=”25px” _builder_version=”4.27.4″ _module_preset=”default” header_2_font=”|600|||||||” header_2_text_color=”gcid-70ff693f-6f97-4074-be90-9adb196c4afe” header_3_font=”|600|||||||” header_3_text_color=”gcid-70ff693f-6f97-4074-be90-9adb196c4afe” header_4_font=”|600|||||||” custom_margin=”||15px||false|false” custom_padding=”||0px|||” global_colors_info=”{%22gcid-70ff693f-6f97-4074-be90-9adb196c4afe%22:%91%22header_3_text_color%22,%22header_3_text_color%22,%22header_2_text_color%22%93}”]<\/p>\n

Figure 2\u00a0: \u00e9volution des concentrations de CO2<\/sub> dans l\u2019atmosph\u00e8re \u00e0 horizon 2100 (source GIEC[iii]<\/a>)<\/em><\/p>\n

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Carbon’s impact on global warming is the one most often highlighted. But here we would like to highlight another aspect of carbon dioxide. For many years now, we have known that indoor air quality<\/strong> plays a significant role in our cognitive performance<\/strong>[iv]<\/a>. According to a study published by New York University[v]<\/a>, a level of just 1,000 ppm of CO\u2082 is enough to reduce our decision-making faculties by 11% to 23%.<\/strong> However, if we reach 1,135 ppm by 2100, the air outside will be of the same quality as the air we consider unhealthy indoors today! So it’s no longer a question of complying with environmental rules for the sake of compliance. Being vigilant about greenhouse gas emissions is far from trivial. This is where the carbon component of the RE2020 can play a role. From 1 January 2025, more ambitious thresholds will apply to new buildings, taking a long-term<\/strong> perspective. Let’s take a look at the concrete benefits of the RE2020 carbon requirements, and how the deployment of ceiling fans (BAP) can help to make our buildings more energy-efficient.<\/p>\n

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Summary article<\/h2>\n

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