Table III.
Ultraviolet germicidal irradiation (UVGI) interventions and N95 filtering facemask respirators used to evaluate UVGI decontamination on airflow resistance
| First author and year | Wavelength (nm) | Watts (W) | Duration (min)a | Dose | Intensity (mW/cm2) | Distance (cm)b | UVGI study arms | N95 masks evaluated |
|---|---|---|---|---|---|---|---|---|
| Bergman, 2010c | 254 | 40 | 45 | 48,600 | 1.8 | 25 | Single UVGI arm | 3M 8210 3M 8000 Moldex 2201 Kimberly Clark PFR95-174 3M 1870 3M 1860 |
| Lindsley, 2015 | 254 | 15 | NR | 1,200,000 to 9,500,000 | NR | 6.2 | Arm 1: 1,200,000 J/m2 Arm 2: 2,400,000 J/m2 Arm 3: 4,700,000 J/m2 Arm 4: 7,100,000 J/m2 Arm 5: 9,500,000 J/m2 |
3M 1860 3M 9210 GE 1730 Kimberley-Clark 46727 |
| Viscusi 2009 c | 254 | 40 | 30 | 3520–3620 | 0.18–0.20 | NR | Single UVGI arm | 3M 8210 3M 8000 Moldex 2200 Kimberly Clark PFR95-270 3M 1870 3M 1860 |
NR, not reported.
a
Refers to the duration for which the N95 filtering facepiece respirator (FFR) models were exposed to ultraviolet.
b
Refers to the distance from the ultraviolet light to the N95 FFR model(s).
c
Mask models for the following studies obtained through private correspondence: Bergman (2010), Viscusi (2009).