Start with the prescription. Sleep apnea treatment begins with a sleep study and a doctor's order, and any reputable Vancouver retailer will ask for that before selling a machine. Once you have it, the real work is the mask fit. A mask that leaks or presses on the bridge of the nose will end up in a drawer, so choose a shop that lets your parent try several styles in person and adjust them properly. That hands-on fitting is where local retailers earn their keep.
Think about where the machine will live. In a compact downtown or Yaletown condo, a quieter unit and a small footprint matter more than in a roomy home in Dunbar or on the North Shore. Vancouver's coastal humidity is worth mentioning too. A heated humidifier with adjustable settings and a heated hose helps prevent that clammy, wet-mask feeling in a damp older home, especially through the rainy winter months. Ask the retailer how their humidifiers behave in our climate.
On the machine itself, we usually steer families toward an auto-adjusting (APAP) unit rather than a fixed-pressure one for a first-time senior user. APAP adapts through the night, which tends to feel gentler and forgiving as sleep patterns change. Also look for clear data tracking, either an app or a card, so you and the doctor can confirm it's actually working. Prioritize a retailer with genuine experience serving older adults, a solid warranty, and quick service if a part fails or the mask needs re-fitting. The trade-off with a full-service local shop is that the cheapest online price will often beat them; you're paying for the fitting, the follow-up, and someone who picks up the phone. In our experience that support is worth it for a parent new to therapy.