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The design sports a 0.04 inch (1 millimetre) -thick transparent shell which fully encloses the head and neck - with the exception of the vacuum port and the aperture that allows mouth access.Ī nozzle attached to the mouth access port serves to extend the distance droplets must travel against the flow - thereby minimizing their chance of escape from the helmet through the opening.Īt the same time, this allows for a smoother flow transition that reduces patient discomfort generated by air turbulence, the researchers said. However, experts have warned that these measures are expensive and often neither highly effective nor accessible - unlike the new safety helmet. Healthcare professionals are at a higher risk COVID-19 infection because they often come into contact with symptomatic or asymptomatic patients.Īt present, protection comes from N95 masks and face shields, along with the use of empty clinic rooms or so-called 'negative pressure' rooms with air filtration. This ensures that any potentially infected droplets become trapped in the flow of air coming in through the mouth aperture - and are unable to escape the helmet.Īlongside dentists, the concept could also be used by so-called otolaryngologists - ear, nose and throat doctors - who also need access to patients' heads and necks. To protect dentists from catching coronavirus, patients could soon be asked to wear open-faced helmets that suck up any COVID-laden droplets they cough up.ĭeveloped by experts at New York's Cornell University, the disposable, transparent helmets are connected to a pump that creates a reverse flow of air around the head.
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