Troubleshooting
Problem/possible Solution cause
Mask is uncomfortable
Cushion incorrectly | With the air turned off, adjust the straps so that you can |
inflated | insert two fingers between your cheek and the lower |
| headgear strap. |
Technical specifications | |
Dead space | The dead space of the mask varies according to cushion |
information | size. It is 185 mL for the Medium size. |
Resistance | Drop in pressure measured (nominal) |
| at 50 L/min: 0.1 cm H2O |
| at 100 L/min: 0.7 cm H2O |
Gross dimensions | Mask fully assembled – no headgear. |
S, | 5.55”/141 mm (H) x 3.58”/91 mm (W) x 4.21”/107 mm (D) |
M, L, LW: | 6.06”/154 mm (H) x 3.74”/95 mm (W) x 4.6”/117 mm (D) |
Mask setting | Select ‘Activa’ (if available) or ‘Standard’ as the mask option |
options | when using the Mirage Activa LT with ResMed devices that |
| have mask setting options. |
2
