Please assess the completion status of the following clinical trial:

Trial Title: Toffee Full Face and Toffee Nasal Mask Evaluation in Obesity Hypoventilation Syndrome (NZ)

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Aged 18+~* Diagnosed with OHS by a practicing physician~* Existing full face mask user or a nasal mask user~* Prescribed PAP therapy (Bi-Level or CPAP)~Exclusion Criteria:~* Inability to give informed consent~* Pregnant or think they may be pregnant~* Anatomical or physiological conditions making PAP therapy inappropriate~* Patients requiring supplemental oxygen with their PAP device~* Patients who are in a coma or decreased level of consciousness~* Existing Toffee full face and Toffee nasal mask users~* No arterial PCO2 value from their medical records

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Full face/Nasal masks (Type: EXPERIMENTAL): Toffee Full face/Toffee nasal

Based on this trial design, predict the completion outcome and termination type (if applicable).