http://www.elpuntavui.cat/societat/article/14-salut/2002954-un-robot-mesura-el-dioxid-de-carboni-per-veure-el-risc-de-propagacio-de-la-covid-en-espais-tancats.html?utm_source=telegram&utm_medium=botons&utm_campaign=com_epanoticies