If you're in a country like France, where buying fans for your daughter's schools is not allowed [0], or installing your own store-bought AC unit either, making

If you're in a country like France, where buying fans for your daughter's schools is not allowed [0], or installing your own store-bought AC unit either, making DIY devices seems the easy part, sadly. [0]: (French) https://www.lexpress.fr/environnement/canicule-il-offre-dix-ventilateurs-a-l-ecole-de-sa-fille-et-doit-les-reprendre_2086448.html https://www.lexpress.fr/environnement/canicule-il-offre-dix-... [1]: (French) https://www.lemonde.fr/argent/article/2026/06/19/canicule-des-coproprietaires-ayant-installe-une-climatisation-sans-autorisation-sont-condamnes-a-la-retirer_6704977_1657007.html https://www.lemonde.fr/argent/article/2026/06/19/canicule-de...