NIWA’s Post [Video]

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NIWA air quality scientists have been working closely with the Ministry of Education of New Zealand to develop advice about the best ways to keep air safe inside classrooms and to identify the best measures for classroom use. 🏫   Simple steps like wearing masks and letting fresh air into a room can markedly reduce the risk of transmitting the COVID-19 virus indoors. 🪟😷 This video shows what happens to our breath when we’re indoors, with and without masks and with and without ventilation.   The video, produced with Fisher & Paykel Healthcare, uses a special CO2-sensing camera that shows how effective mask wearing and ventilation can be in re-directing and dispersing exhaled air and replacing it with clean air, to reduce the risk of indoor virus transmission.

Micah Dodge

Senior Environmental Data Technician at Horizons Regional Council

2y

While I can (and do) support the wearing of masks, and of ventilation, given the lack of scope in the camera, what is happening to the breath in high ventilation areas? and if someone is standing directly downwind of someone in those areas, how is the increased ventilation reducing the potential for someone in that position from coming into contact with those particles? Given the current guidelines on distancing, masks etc., to have a video showing both of these, and being able to use them to assume reduced loads, is probably not feasible or advisable - it would look like poor safety protocol, but even having a cardboard cutout as a surrogate for the receiver would give better indications of the benefits. While this is just my opinion, I can see how anyone who wants to refute or dismiss the validity of this could do so with little effort.

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Renelle GRONERT

Director - School Design. Te Puna Hanganga, Matihiko.

2y

Great work and advice!

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