Comparison of PF from real and simulated workplace studies
| Device | Real WPF | Simulated WPF | Ratio simulated:real |
|---|---|---|---|
| * Respirators as identified in Howie et al.3 | |||
| †Howie et al.3 | |||
| ‡Johnston et al.7 | |||
| §Parker et al.9 | |||
| Full-mask powered | |||
| R2* | 55† | 11000‡ | 200 |
| R3* | 49† | 22500‡ | 459 |
| R4* | 8.4† | 998‡ | 119 |
| Air fed blasting helmet | 2870§ | >40000§ | >14 |