O2matic HOT
O2matic HOT is a CE-marked home oxygen therapy device that reads a patient's blood oxygen saturation continuously and adjusts oxygen flow on its own, replacing fixed-dose delivery and sending each session to the treating clinical team.
What is O2matic HOT?
O2matic HOT, sold as model HOT 100, is a home oxygen therapy device from the Danish manufacturer O2matic ApS. It works as a closed loop: an approved pulse oximeter reads the patient's oxygen saturation continuously, and the unit raises or lowers the oxygen flow to hold the target range the clinician prescribed. That replaces the usual arrangement, where a fixed litre-per-minute setting stays where a nurse left it while the patient walks, eats or sleeps.
The device does not produce oxygen. It sits between the patient's existing source, a concentrator or a cylinder, and their nasal cannula or mask. It can run continuously or in two to three short sessions a day, so the sensor does not have to be worn all the time; between sessions it delivers a fixed flow it has calculated from the last one.
It is a small piece of hardware: 700 grams, 150 by 150 by 100 millimetres, four hours of lithium-ion battery, mains power at 120 to 240 volts, an always-on 56 decibel alarm, IP22 ingress protection and a type BF applied part. It reads saturation from 70 to 100 percent within two percentage points and delivers 0 to 15 litres per minute depending on the prescription. Sessions reach the treating team through O2matic Connectivity, built on Microsoft Azure and HL7. A companion Android app, O2matic – HOT, shows past measurements, though the device runs without it.
The evidence for the home setting is specific and small. In a randomised crossover feasibility trial, time within the target saturation rose from 52 to 86 percent, and eleven of twelve patients reached a clinically relevant improvement in health status. An earlier study reported 98 percent longer walking time and half the breathlessness on the Borg scale. The device carries the CE mark with notified body 0123; O2matic has held class IIB certification from TÜV SÜD since 2019 and manufactures under ISO 13485. It is prescribed, installed and configured by a local service provider, never bought directly.
What it does
- Measure blood oxygen saturation continuously through an approved pulse oximeter
- Adjust oxygen flow automatically to hold the prescribed target range
- Run either continuously or as two to three short sessions a day
- Deliver a calculated fixed flow between sessions, based on the last session
- Log every session and send it to the treating clinical team
- Raise an always-on audible alarm when the patient needs to act
- Show previous measurements on a paired Android phone or tablet
When to use O2matic HOT / When not to
A quick filter to help you decide if O2matic HOT is the right fit.
When to use O2matic HOT
- People with COPD on long-term oxygen therapy whose oxygen needs change as they move, eat or sleep
- Respiratory therapists and home-health nurses who manage oxygen prescriptions outside the hospital
- Pulmonologists and rehabilitation physicians looking for measured time-in-target rather than a fixed litre-per-minute setting
- Hospital and community teams that want treatment data from the home to spot deterioration early
- Clinical research groups running oxygen titration trials, given the twelve peer-reviewed studies behind the technology
When not to use O2matic HOT
- Anyone expecting software: this is a 0.7 kg physical device that a provider installs and configures
- Patients without an existing medical oxygen source, since the unit regulates oxygen rather than producing it
- Hospital wards, emergency departments and intensive care, which are served by the separate O2matic PRO device
- Military, MEDEVAC and prehospital teams, which are addressed by the dual-use version of PRO and not by HOT
- Buyers in the United States, where the company states it is still awaiting market clearance
How to use O2matic HOT
A typical end-to-end flow, from setup to results.
- A local service provider supplies the unit and configures it with the treatment profile prescribed for you
- Connect your oxygen source, a concentrator or cylinder, to the oxygen input on the back of the device
- Plug in the mains adaptor supplied by O2matic and switch the device on
- Attach your nasal cannula or mask to the outlet, using only accessories your provider has approved
- Place the pulse oximetry sensor on a finger, avoiding nail polish, which distorts the reading
- Start a session; depending on configuration the unit may measure for up to five minutes before it begins adjusting flow
- Let the session run: the device holds your target saturation and delivers a calculated fixed flow afterwards
- Optionally pair a phone or tablet over Bluetooth with the O2matic – HOT app to review previous measurements
- If your provider supplied a device to collect treatment data, keep it on Wi-Fi, in Bluetooth range and on power
- Watch the battery indicator, and contact your service provider for support, cleaning or any alarm you cannot clear
Pros & Cons
Pros
- Presented as the first and only CE-marked system bringing automatic oxygen titration into the home
- Measured gain in the home setting: 86 percent of time in target against 52 percent on a fixed dose
- Functional benefit documented as 98 percent longer walking time and half the breathlessness on the Borg scale
- Twelve peer-reviewed studies behind the technology, each linked by DOI on the product page
- Light and compatible with the oxygen equipment already installed at home
- Strong regulatory trail: CE mark with notified body 0123, class IIB since 2019, manufacturing under ISO 13485
- User documentation, including the full instructions for use, downloadable without a form
Cons
- No public price anywhere, and no way to buy directly: everything runs through a service provider the site does not list
- No terms and conditions and no legal notice are published, unusual for a CE-marked medical device manufacturer
- Not available in the United States, where the company states it is awaiting market clearance
- The Android companion app is documented in the manual but has no findable public Google Play listing, and there is no iOS app
- The key home evidence rests on twelve patients in a crossover feasibility trial
- The site contradicts itself, calling the product HOT in the product page body and HOME in that page's meta description and its llms.txt, and counting twelve peer-reviewed studies against eleven in the same file
- The privacy policy covers only the website and states health data is not collected, leaving the device's clinical data undocumented
Pricing & Plans
No price is published. There is no pricing page, no plan, no free trial and no monetary amount anywhere on the site or in the three downloadable PDF documents, including the thirty-two page instructions for use. This was verified rather than assumed: twenty-six candidate pricing paths were probed and all returned a genuine 404, and a currency search across every archived document returned nothing. O2matic HOT is a prescribed medical device supplied and configured by a local service provider, so acquisition is handled through institutional purchasing or reimbursement rather than a published tariff. Prospective users are directed to the site's enquiry form, whose general option is labelled for hospital procurement and clinical evaluation.
Data, GDPR & hosting
A consolidated view of how O2matic HOT handles your data.
GDPR overview
GDPR compliance is stated explicitly: the privacy policy, last updated on 12 May 2026, commits O2matic ApS to processing personal data lawfully, fairly and transparently under the Regulation. It cites specific legal bases article by article, covering legitimate interest, contract, consent and legal obligation, and it lists the full set of data subject rights, exercised through info@o2matic.com after an identity check. The Danish supervisory authority, Datatilsynet, is named for complaints, and non-essential cookies are placed only after consent. Two gaps are worth noting. No data protection officer is named anywhere, and no Article 27 representative is needed because the company is established in Denmark. More importantly, the policy states that health data is not intentionally collected through the website, which leaves the clinical data generated by the device itself outside every published document.
Who owns the data?
O2matic ApS, at Nørrelundvej 10, 2730 Herlev, Denmark, is the named data controller, reachable at info@o2matic.com. That statement covers the website only. Personal data collected there may be shared with IT hosting providers, analytics and email suppliers, HubSpot as CRM, professional advisers and public authorities, always under a data processing agreement, and the company states it does not sell personal data. For the device itself the picture is thinner: treatment sessions travel to the clinical team through O2matic Connectivity, but no published document says who controls that clinical data, on what legal basis, or under what agreement with the treating institution.
Reuse rights
The published terms do not grant the end user any reuse rights, because O2matic publishes no terms and conditions at all: the site carries only a privacy policy and a cookie policy. Within the privacy policy, website data is used to operate the site, answer enquiries, run newsletters, manage the customer relationship in HubSpot and meet legal obligations, each with a stated GDPR legal basis. Transfers outside the EU and EEA rely on the European Commission's Standard Contractual Clauses. Nothing anywhere on the site or in the manuals addresses whether customer or patient data may be used to train models, so no opt-out is documented either. Patients wanting their own treatment records should ask the service provider that installed the unit.
Data retention & training
Hosting summary
Hosting is only partly documented. On the product side, treatment sessions travel through O2matic Connectivity, which the manufacturer describes as built on Microsoft Azure, HL7-based and CE-marked. No country or region is named for that platform, and neither the site nor the instructions for use say where the data physically sits. On the website side, the privacy policy refers to IT hosting providers and website operators without naming any of them, and states that personal data may be transferred outside the EU and EEA, for example when using HubSpot, under the European Commission's Standard Contractual Clauses. The site itself is served from Railway infrastructure and the domain resolves to a Danish network, but that describes the marketing site rather than patient data. Any institution deploying the device should ask O2matic directly for the hosting jurisdiction and the corresponding processing agreement.
Where O2matic HOT works
Country-level availability.
Not available in
Things to keep in mind
Risks and trade-offs to weigh before adopting O2matic HOT.
- This is a prescribed medical device: never change its configuration, its accessories or its oxygen source without the service provider who installed it
- The manual warns that the unit and its oximeter must be used only by the patient they were configured for, since use by anyone else can cause improper treatment
- Using an unapproved pulse oximeter voids the warranty and, more importantly, undermines the reading the whole loop depends on
- Automation can breed complacency: the device holds a target range but does not replace clinical review, and its alarm only helps if it stays within hearing distance
- Treatment data leaves the home for the clinical team, yet no published document states who controls it, how long it is kept or where it is hosted
- Neither terms and conditions nor a legal notice are published, so a patient or buyer has no written statement of their rights against the manufacturer
- The site names the product inconsistently and gives two different counts of its clinical studies, so verify any figure against the underlying papers before relying on it
Setup & Integrations
Technical difficulty
Effort is very low for the patient and entirely front-loaded onto the provider. A local service provider delivers the unit already configured with the prescribed treatment profile. The patient only connects the oxygen source and mains power, attaches the cannula or mask, clips the sensor on a finger and starts a session. Pairing an Android phone over Bluetooth is optional. Opening the device is forbidden and accessories must be approved. The unquantified part is institutional: integrating the HL7 data stream on Azure into a clinical system is not documented publicly.
Deployment
Integrations
Supported languages
Behind O2matic HOT
Social
Resources
All the official URLs gathered for verification and reference.
Frequently asked questions
What is O2matic HOT?
How is it different from O2matic PRO?
Does it supply the oxygen itself?
Does the sensor have to be worn all the time?
What does it cost?
Is there a mobile app?
Is it certified?
Can I buy it in the United States?
Does my clinician see my treatment data?
What clinical evidence exists for home use?
Should you pick O2matic HOT?
O2matic HOT solves a narrow problem thoroughly. Home oxygen is normally delivered at a fixed rate that nobody adjusts between clinic visits, and this device closes that loop by titrating against a continuous saturation reading. The clinical record behind the technology is unusually solid for a company of fourteen people: twelve peer-reviewed studies, each linked by DOI, plus an August 2026 white paper and two full instruction manuals published without a form. The regulatory trail is equally clear, with the CE mark carrying notified body 0123 and class IIB certification held since 2019.
Two reservations deserve weight. The evidence specific to the home, the figures of 86 percent against 52 percent and eleven patients out of twelve, comes from a crossover feasibility trial of twelve people; the larger numbers on the site come from hospital studies of the PRO device. And almost nothing about the commercial relationship is visible. There is no price, no list of service providers, no terms and conditions and no legal notice, and the companion Android app described in the manual has no findable store listing.
The gap that matters most is legal. This is a device that measures and transmits a patient's oxygen saturation, which is health data, yet the only privacy policy published covers the website and explicitly says health data is not collected there. No legal basis, retention period or hosting location is documented for the clinical stream. That is a question for the treating institution rather than a reason to dismiss the product, but it should be asked before deployment. For a respiratory service already managing long-term oxygen patients, O2matic HOT is worth an enquiry; nobody else will be able to evaluate it from the website alone.
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