Does the VENT-LS protect against aerosolizing the viruses during inhalation or exhalation?

The VENT-LS is a non-recirculating system where the inspiratory and expiratory lines are separate. For inspiration, room air is filtered through a bracket-mounted HEPA air filter. This filter is changed according to instructions provided in the user manual. The expiratory line uses a patient circuit HEPA filter, located at the bulkhead, which needs to be replaced after each patient.