Table 1.

Summary of tests performed on surgical masks and respirators.

Test	Details	Surgical masks			Respirators
		n	Pass	Fail	n	Pass	Fail
Decontamination method	75 °C, 45 min	Oven
Visual integrity	Cleanliness	20	Until 9th cycle	10th cycle	14	All 7 cycles	–
	Nose clip	20	All 10 cycles	–	14	Until 2nd cycle	3rd cycle
	Elastic/handle	20	Until 5th cycle	6th cycle	14	All 7 cycles	–
Physical integrity	Air permeability	5	All 5 cycles	–	5	All 5 cycles	–
	Burst resistance	5	All 5 cycles	–	5	All 5 cycles	–
	Pressure differential	5	All 5 cycles	–	5	All 5 cycles	–
Particulate filtration efficiency	20–800-nm particles	5	All 4 cycles	–	3	All 2 cycles	–
DNA retention	DNA spray	6	Until 5th cycle	10th cycle	3	All 7 cycles	–
SARS-CoV-2 RNA detection	RT-PCR	–	–	–	14	13	1
	Viral culture	–	–	–	4	4	–
Decontamination method	134 °C, 4 min	Autoclave
Visual integrity	Cleanliness	15	All 5 cycles	–	15	All 5 cycles	–
	Nose clip	15	All 5 cycles	–	15	1 cycle	2nd cycle
	Elastic/handle	15	All 5 cycles	–	15	All 5 cycles	–
Physical integrity	Air permeability	5	All 5 cycles	–	5	All 5 cycles	–
	Burst resistance	5	Until 2nd cycle	3rd cycle	5	All 5 cycles	–
	Pressure differential	5	All 5 cycles	–	5	All 5 cycles	-
Decontamination method	H2O2 plasma vapour	H2O2
Visual integrity	Cleanliness	2	1 cycle	–	3	All 2 cycles	–
	Nose clip	2	1 cycle	–	3	All 2 cycles	–
	Elastic/handle	2	1 cycle	–	3	All 2 cycles	–
Physical integrity	Air permeability	2	1 cycle	–	2	1 cycle	–
	Burst resistance	2	1 cycle	–	2	1 cycle	–
	Pressure differential	2	1 cycle	–	2	1 cycle	–
Particulate filtration efficiency	20–800-nm particles	–	–	–	2	All 2 cycles	–
Decontamination method	84 °C, 40 min	Thermal drying
Visual integrity	Cleanliness	2	1 cycle	–	2	1 cycle	–
	Nose clip	2	1 cycle	–	2	1 cycle	–
	Elastic/handle	2	1 cycle	–	2	1 cycle	–
Physical integrity	Air permeability	2	1 cycle	–	2	1 cycle	–
	Burst resistance	2	1 cycle	–	2	1 cycle	–
	Pressure differential	2	1 cycle	–	2	1 cycle	–

SARS-Cov-2, severe acute respiratory syndrome coronavirus-2; RT-PCR, reverse transcription polymerase chain reaction; H₂O₂, hydrogen peroxide.