Table 1.
First testing session. Fit testing results for the Aria QR + mask (medium/large) using the coated PLA adapter, sealed with putty, with the 3M 2091 filters, and the fit testing method drilling the mask (Fig. 5).
| Mask configuration | 3M 6800 full face respirator | Snorkel mask duct tape | Snorkel mask no modifications | Snorkel mask mouth cover removed |
|---|---|---|---|---|
| Normal breathing | 297,913 | 44,910 | 18,511 | 1123 |
| Deep breathing | 288,127 | 40,394 | 27,612 | 1412 |
| Head side to side | 442,017 | 63,628 | 38,360 | 1541 |
| Head up and down | 349,546 | 66,749 | 63,259 | 1234 |
| Talking | 266,729 | 21,200 | 7933 | 1953 |
| Bending over | 326,150 | 12,676 | 7534 | 929 |
| Normal breathing | 454,406 | 76,511 | 16,065 | 593 |
| Overall fit factor | 333,867 | 32,281 | 15,448 | 1105 |
| Fit Test* | Pass | Pass | Pass | Pass |
*
OSHA fit factor passing value is 500 or greater.