Table II.

Microwave and heat intervention parameters and N95 filtering facepiece respirators for which post-decontamination performance outcomes (aerosol penetration and airflow resistance) were evaluated

	First author, year	Powera/Temperature	Time	Cycles	Moisture	Pressure	N95 models		Performance outcomes	Summary of resultsb
Microwave	Bergman, 2010	750 W/ft3	120 s	3	MGS	Room	3M 8000c 3M 8210c Moldex 2201c	KC PFR95-174c 3M 1860c 3M 1870c	Aerosol penetration Airflow resistance	%P<3 for all models AR <15 mmH2O for all models
	Fisher, 2011	750 W/ft3	90 s	1 or 3	MGS, steam bag Xd	Room	Cardinal Health 3M 8210 Moldex 2200	KC PFR95 3M 1860 3M 1870	Aerosol penetration	%P<5 for all models/conditions
	3	MGS, steam bag Yd
	Lore, 2012	1250 We	120 s	1	MGS	Room	3M 1860 3M 1870		Aerosol penetration	%P<2 for all models
Viscusi, 2007	750 W/ft3	120 s	1	Dry	Room	3M 8000c		Aerosol penetration	%P<2 for all conditions
240 s
Viscusi, 2009	750 W/ft3	120 s	1	Dry	Room	3M 8000c 3M 8210c Moldex 2200c	KC PFR95-270c 3M 1860c 3M 1870c	Aerosol penetration Airflow resistance	%P<2 for all models AR ≤9 mmH2O for all models (3M 1870 not measured due to melting)
Heat	Bergman, 2010	60°C	30 min	3	MHI (80% RH)	Room	3M 8000c 3M 8210c Moldex 2201c	KC PFR95-174c 3M 1860c 3M 1870c	Aerosol penetration Airflow resistance	%P<3 for all models AR ≤15 mmH2O for all models
	Lin, 2017	149–164°C	3 min	1	Dry	Room	3M 8210		Aerosol penetration Airflow resistance	%P<3 for all conditions AR <11 mmH2O for all conditions
	121°C	15 min	1	Steam (autoclave)	1.06 kg/cm2
	Lore, 2012	65°C	20 min	1	MHI (RH unspecified)	Room	3M 1860 3M 1870		Aerosol penetration	%P<2 for all models
	Viscusi, 2007	80°C	60 min	1	Dry	Room	3M 8000c		Aerosol penetration	80°C: %P<1 160°C: mask not measured due to melting
		160°C
	121°C	15 min	1	Steam (autoclave)	1.05 kg/cm2	Autoclave: %P>18 for both conditions
30 min
Viscusi, 2009	80°C	60 min	1	Dry	Room	3M 8000c 3M 8210c Moldex 2200c	KC PFR95-270c 3M 1860c 3M 1870c	Aerosol penetration	80–100°C: %P ≤ 2 for all models 110–120°C: %P<5 for all models except KC PFR95-270 at 110°C (%P=5.4)f
	90°C
	100°C
	110°C
	120°C

%P, percentage aerosol penetration; AR, airflow resistance; KC, Kimberly–Clark; MGS, microwave-generated steam; MHI, moist heat incubation; RH, relative humidity.

^aIf both manufacturer-rated and experimentally-determined microwave power were provided, the experimental value is reported here.

^bGreater-/less-than values are reported to the nearest whole number. Outcome successes are defined as aerosol penetration <5% and airflow resistance <25 mmH₂O.

^cMask models were anonymized in article. Model names were obtained by e-mail from R. Shaffer in April 2020.

^dSteam Bag X = Medela Quick Clean™ MICRO-STEAM™ BAGS; Steam Bag Y = Munchkin® Steam Guard™ Bags.

^ePower units per volume not specified.

^fData for the KC PFR95-270 at 110^oC was obtained from only one replicate instead of three due to melting of the other two.