The portable way in.

Most likely. The S1 is under 6 ft long and needs no room of its own: a bedroom, a home office or a corner of the living room works. Not sure? Tell us about the room on a 15-minute call.Most likely. The S1 is under 1.8 m long and needs no room of its own: a bedroom, a home office or a corner of the living room works. Not sure? Tell us about the room on a 15-minute call.

Minutes, once you have done it once. Lay out the capsule, connect the machine beside it and plug in. There is no installation and no contractor, and our team walks you through the first session remotely.

Yes. You run the session from inside with the remote, the door unzips from inside, and a manual valve lets the pressure out by hand. We still suggest someone at home during a session, and we walk you through your first one.

Quiet. The compressor and the concentrator run outside the capsule, beside it, not in there with you.

Very little. The concentrator makes its own oxygen, so there are no tanks to refill, and 10 masks come in the box.

You pick 1.3, 1.4 or 1.5 ATA. The capsule fills with air, and oxygen reaches you only through your mask. Every S1 is pressure-tested to 150% of its rating before it ships.

Seven: Gloss White, Light Grey, Lime Green, Royal Blue, Navy, Medium Grey and Black. Black is included; the other six are priced in the configurator, where you can see each one before you buy.

In the US, you can check through Truemed. Use the HSA/FSA link on this page to see whether your account qualifies before you buy.

The S1 is the portable one: soft-shell, sit or recline, up to 1.5 ATA, and you set it up yourself. The L1 is a lie-flat hard-shell that reaches 2.0 ATA and stays in place, planned and installed by our team. If you are between the two, a 15-minute call settles it.