. 2021 Oct 18;119:84–117. doi: 10.1016/j.jhin.2021.07.014

Table IV.

Results of disinfection methods against airborne viruses

	Study	Virus	Disinfectant	Disinfection phase	Exposure time	Reduction of viral infectivity (log10) or (%)
1	Buonanno et al. (2020)	Alphacoronavirus HCoV-229E	Far-UV-C light at 222 nm (0.5, 1 and 2 mJ/cm²)	Dynamic aerosol/virus irradiation chamber	∼20 s	1.7 mJ/cm² produce 99.9% inactivation (3-log reduction) of aerosolized alpha HCoV-229E
1	Buonanno et al. (2020)	Betacoronavirus HCoV-OC43	Far-UV-C light at 222 nm (0.5, 1 and 2 mJ/cm²)	Dynamic aerosol/virus irradiation chamber	∼20 s	1.2 mJ/cm² produce 99.9% inactivation (3-log reduction) of aerosolized beta HCoV-OC43
2	Qiao et al. (2020)	PRCV	UV-C light 200–850 nm (13.9 mJ/cm²)	Wind tunnel (high flow rate of 2439 L/min)	1.3 s	2.2 log10 (99.4% removal efficiency)
2	Qiao et al. (2020)	PRCV	UV-C light 253±1 nm (49.6 mJ/cm²)	Wind tunnel (low flow rate of 684 L/min)	5.1 s	3.7 log10 (99.98% removal efficiency)
3	Yu et al. (2020)	SARS-CoV-2	Novel Ni-foam-based filter (up to 200°C)	Aerosolized SARS-CoV-2	Single pass	99.8% reduction
4	He et al. (2004)	SARS coronavirus	Ag/Al₂O₃ (Ag 5 wt%) catalytic oxidation	Ag/Al₂O₃ and Cu/Al₂O₃ wafers	5 min and 20 min	Virus undetectable
4	He et al. (2004)	SARS coronavirus	Cu/Al₂O₃ (Cu 10 wt%) catalytic oxidation	Ag/Al₂O₃ and Cu/Al₂O₃ wafers	5 min and 20 min	Virus undetectable

SARS-CoV-2, severe acute respiratory syndrome coronavirus-2; PRCV, porcine respiratory coronavirus; HCoV, human coronavirus; UV-C, ultraviolet C irradiation; Ni, nickel; Ag, silver; Cu, copper.