Question 1

Do you also offer VO2 max and metabolic tests?

Accepted Answer

Yes. Performance Test measures oxygen uptake and training zones on a bike; Metabolic Baseline measures energy use at rest. Reserve online — testing opens in November 2026.

Question 2

Do I need an account to book?

Accepted Answer

Yes. All bookings require a user account — it is how you get your door link, see your sessions and credits, and cancel or move a booking yourself. Creating one takes less than a minute.

Question 3

Do I need an intro session first?

Accepted Answer

Yes. Your first booking is an intro session, where you are shown how to operate the chamber yourself and get all your questions answered. Once it is completed your account is opened up and you can book single sessions, session packages or a membership as you like.

Question 4

How do I breathe the oxygen — mask or headset?

Accepted Answer

The chamber comes with a headset that delivers the oxygen. It is more comfortable than a mask and fits everyone. If you prefer a mask, you can buy one for 100 DKK — it is then your own mask and you bring it every time. A mask ensures you only breathe the concentrated oxygen, where the headset can be diluted slightly with chamber air.

Question 5

How do I get in when nobody is there?

Accepted Answer

The centre is unmanned. When your booking is confirmed you get a door link by email and SMS. Open it on your phone to unlock the door, and the screen inside greets you by name and starts your session.

Question 6

What pressure do you operate at?

Accepted Answer

1.5 ATA. That is a mild pressure comparable to being about five metres below the surface. 2.0 ATA is the clinical pressure used for approved medical indications; the lower pressure has a documented safety profile that suits frequent use, and it is the pressure used in the post-concussion trials.

Question 7

Do I need to do a certain number of sessions?

Accepted Answer

No. You book as often as suits you. Single sessions are always available, and packages of 20, 40 or 60 sessions give a lower price per session. Read the research on our science page and decide what fits you.

Question 8

Is HBOT safe?

Accepted Answer

Hyperbaric oxygen therapy is widely used and considered very safe at the pressure we operate at. You may feel a gentle pressure in your ears, like on an aeroplane. Some conditions mean you should not use a chamber — you confirm those in the booking flow, and if you are unsure you should ask your doctor first.

Question 9

What happens if something goes wrong while I'm inside?

Accepted Answer

You can open the chamber yourself from the inside at any time — it depressurises in a few minutes and nothing locks. The chamber shuts down automatically at the end of your session, and there is an emergency stop next to it. Our phone number is on the wall and on the screen, and calls go straight to a person.

Question 10

Can I bring my phone?

Accepted Answer

Yes. Phones, tablets, headphones and books are all fine. There is Wi-Fi, and most people read, work, listen to something or nap. Do not bring lighters, e-cigarettes, aerosols or anything else that can ignite.

Question 11

How long is a booking slot?

Accepted Answer

Every booking reserves a 2-hour window. The chamber takes about 10 minutes to pressurise after you have settled in and closed it, and a few minutes to depressurise at the end. That leaves plenty of time for a 60- or 90-minute session without rushing.

Question 12

What should I wear and bring?

Accepted Answer

Wear comfortable, loose clothing — you stay fully dressed. Bring water and a small towel to sit on, as it gets a little warm towards the end. There is also a fridge on site with a selection of drinks you can buy.

Question 13

Do I get wet?

Accepted Answer

No. You breathe oxygen-enriched air inside a dry chamber. There is no water involved.

Question 14

Who should not use HBOT?

Accepted Answer

Do not use the chamber if you have an untreated pneumothorax, are undergoing chemotherapy, have an uncontrolled fever, have had recent ear or sinus surgery, have a lung condition that causes air trapping, or are pregnant. You confirm this before booking. If you are unsure, consult your doctor first.

Question 15

What chamber do you use?

Accepted Answer

Built on certified equipment: our chamber is CE marked by its manufacturer for the European market and produced under ISO 13485 and ISO 9001 certified manufacturing. It runs at a maximum of 1.5 ATA with a 95% concentrator output, and is designed for self-service operation.

Question 16

Can I cancel or move my booking?

Accepted Answer

Yes — move or cancel it yourself from your profile up to 2 hours before your session. Intro sessions must be changed or cancelled at least 12 hours in advance. Sessions paid with a membership or credits go straight back to your balance.

Question 17

Do I need to be an athlete?

Accepted Answer

No. The tests are for anyone who wants to understand and improve their health.

Question 18

Is this a medical examination?

Accepted Answer

No. The scores are indicators of fitness and should not be construed as indicators of health or a diagnosis. If any value concerns you, talk to your doctor.

Question 19

What happens after I reserve?

Accepted Answer

You get a confirmation email, and we contact you personally. If you want the spot, you receive a payment link – once paid, the spot is yours. When the machine has arrived, booking opens and you're first in line to pick a time.

Question 20

Can I cancel?

Accepted Answer

A reservation is free until you've paid. Only 25 spots are open for the offer, so it's first come, first served.

Question 21

What do the tests cost?

Accepted Answer

Metabolic Baseline 995 DKK, Longevity Assessment 2,495 DKK (launch offer 1,500 DKK through October, including one HBOT session) and Performance Test 1,495 DKK.

Question 22

When do I get my results?

Accepted Answer

Your results are processed by PNOĒ and added to your profile within a few days, with a 30-minute walkthrough.

Question 23

How do I prepare?

Accepted Answer

No food 4 hours before, no caffeine and no training the day before. We'll remind you.

Question 24

Is it safe?

Accepted Answer

The active test is a progressive effort on a bike, and you stop when you choose. Not suitable if you have a known heart condition or are pregnant – ask your doctor first.

Everything you need to know

Performance & longevity testing