2.2 SARS-CoV-2 Test Room and the Electric Heater
Fig. 1 is the schematic representation of the 30 m3test room where the experiments were carried out. The test room has an
entry point for injection of the aerosolized SARS-CoV-2 by a venturi
injector, an exit point for sample collection, an entry point for
humidity regulation, air conditioning for temperature regulation, and a
fan to homogenize the distribution of the aerosolized virus.
A nebulizer (M102, Jiangsu Yuyue
Medical Equipment & Supply Co., Ltd., Danyang Jiangsu, China)
aerosolized the virus at an average nebulization rate of 0.2 mL/min at a
particle size of 3.7 microns (as specified by the manufacturer).