Partner: École Polytechnique Fédérale de Lausanne
PI: Prof. Nenes Athanasios ([email protected])
Operator: Dr. Ghislain Motos, LAPI/EPFL
Virus-containing aerosol particles are introduced in the chamber of the LAPI BREATH using a 90 mm sparging liquid aerosol generator (SLAG, CH Technologies Inc., Westwood, NJ, USA), which forms an aerosol from a suspension liquid by bursting bubbles. This mimics the natural formation of aerosols by air-liquid interface systems, such as the respiratory tract, natural and man-made bodies of water etc., (Alsved et al., 2020; Pöhlker et al., 2023). A 22 mL volume of viral suspension is placed on the fritted plate, through which purified air is sent with a flow rate of 30 L/min. The SLAG is connected to the chamber by a tube of 20-mm internal diameter and the point of injection is located 40 cm from the chamber wall, so that the concentration of aerosol particles injected towards the center of the chamber homogenized as quickly as possible.