Table 3.
Key characteristics of the investigated dispensers and handrub volume-loss in 8 h, relative to the baseline volume (N = 22)
| Code name | Dosing | Pumping mechanism | Condition | Volume loss in 8 h |
|---|---|---|---|---|
| Dispenser #A | Manual | Regular | New | 99% |
| Dispenser #B | Manual | Regular | New | 96% |
| Dispenser #C | Manual | Regular | New | 92% |
| Dispenser #D | Manual | Regular | New | 70% |
| Dispenser #E | Manual | Regular | Used | 52% |
| Dispenser #F | Manual | Regular | Used | 32% |
| Dispenser #G | Manual | Regular | New | 32% |
| Dispenser #H | Manual | Regular | New | 24% |
| Dispenser #I | Manual | Regular | New | 20% |
| Dispenser #J | Manual | Regular | New | 20% |
| Dispenser #K | Manual | Regular | New | 19% |
| Dispenser #L | Manual | Regular | New | 7% |
| Dispenser #M | Automatic | Gravitational | New | 5% |
| Dispenser #N | Automatic | Gravitational | New | 5% |
| Dispenser #O | Manual | Regular | Used | 3% |
| Dispenser #P | Manual | Regular | New | 1% |
| Dispenser #Q | Manual | Gravitational | New | 1% |
| Dispenser #R | Manual | Regular | New | 1% |
| Dispenser #S | Automatic | Gravitational | Used | 0% |
| Dispenser #T | Automatic | Gravitational | New | 0% |
| Dispenser #U | Manual | Regular | New | -1% |
| Dispenser #V | Manual | Regular | Used | -1% |
Footnote to the Table: Volume loss (average of 5 measures) at 8 h are indicated as percentages. Negative percentages indicate that the dispenser actually distributed more handrub than measured at baseline; such 1% difference can be explained by the variability induced by the method