| Mask, oxygen | 19 | — |
| Mask, oxygen / Mask, gas, anesthetic | 10 | — |
| Mask, oxygen / Mask, oxygen, non-rebreathing | 48 | — |
| Mask, oxygen, non-rebreathing | 6 | — |
| Mask, oxygen, non-rebreathing | 7 | — |
| Mask, oxygen, non-rebreathing / Mask, oxygen | 39 | — |
| Mask, oxygen, non-rebreathing / Valve, non-rebreathing | 20 | — |
| Mask, surgical | 18 | — |