MACH32 Aerosol Containment Tents are being distributed to hospitals across Canada.The plastic tent uses suction and a HEPA filter to remove COVID-19-infected droplets from the air.“(The tent) contains the aerosols that are produced during procedures and draws (them) out through a HEPA filter.
That then filters to 99.97 per cent efficiency,” Terriff said.“Really, the concept is to build a portable negative pressure area over a patient’s head — and we built it.”Aerosol-generating procedures such as intubation, biPAP and ventilation can spray particles up to 10 metres away.
Those can stay infectious for up to three hours. Because of that risk, hospitals have stopped some procedures.“I have not used biPAP since COVID(-19) started.