Covid-19: aeration of enclosed spaces, a major stake in limiting the spread of the virus

DECRYPTION – For establishments that reopen this Wednesday, no obligation to equip themselves with carbon dioxide concentration measuring devices, a good indicator of air quality, as is the case in Belgium, nor in air purifiers.

Back to the office, indoor training and dinner in the cozy interior of a restaurant, this Wednesday marks the return to almost forgotten habits. Mask, hydroalcoholic gel, distancing and restricted gauges all the same show that the pandemic remains relevant. Present on the health protocol sheets, however, one element often takes a back seat: the ventilation of the premises. However, after having procrastinated for long months, the World Health Organization has recognized the major role of aerosols in the transmission of Sars-CoV-2.

“Although we have integrated it into the recommended barrier gestures for months, it seemed important to us to an opinion on ventilation in particular, to underline its importance, explains the Pr Didier Lepelletier, head of the hospital hygiene service at Nantes University Hospital and expert from the High Council for Public Health (HCSP). We are still in a critical period where caution remains in order. Establishments open to the public

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