We run three air purifiers, two Corsirosenthal boxes and one Xiaomi Pro. We also have two CO2 monitors and plot CO2 levels on displays that are visible to staff and customers. When CO2 rises we can turn up the ventilation room by room, bringing fresh air from the building roof.
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Our portable air/HEPA filter is: "Samsung AX 5500K Air Purifier Smart Wifi with Hepa Filter Fit 60M2 room CADR 467 m3 p/Hr" which we use on the highest setting (3) to provide 7 air changes per hour. Staff wear N95 (or equivalent) masks at all times. Weather-depending, we leave our…
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