Table 1.

Average chamber temperatures and humidity percentages during the study period.

Chamber	Initial		End Temp (°C)		End humidity (%)
	Temp (°C)	Humidity (%)	Min	Max	Min	max
NC	21.36	55.38	21.12	21.73	53.08	56.92
PC	21.11	54.92	21.06	21.45	53.31	56.62
PFD	20.37	55.54	20.32	21.02	51.62	56.69
HFD	20.85	53.08	20.82	21.61	49.92	54.54

NC negative control, PC positive control, PFD PECO-assisted air filtration device, HFD HEPA-assisted air filtration device.