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Envora Labs
Reserve Envora One
Devices
Envora One Available Eleven channels · one fused IAQ score Envora Radon Coming soon Real-time radon · 0–2,000 Bq/m³
Capabilities
Features Alerts, history, dashboards Developers API · MQTT · Home Assistant Envora Fleet Multi-device · org · SSO · audit
All sensors
Overview of the eleven measurements
Carbon Dioxide ppm The breath signal. How fresh is the air you are in? Carbon Monoxide ppm Low-level exposure, tracked over time. Particulate Matter µg/m³ See what you breathe. Down to one micrometre. Temperature & Humidity °C · %RH Comfort is a range, not a number. Barometric Pressure hPa Weather, altitude, storms — all in one number. VOC & IAQ Index index Every gas. Every particle. One honest score. Sound Level dBA The ambient floor, measured — never recorded. Ambient Light lx Your circadian signal, measured.
For your space
All solutions
 Home Kitchens, bedrooms, nurseries, basements. Envora shows you what you breathe — and tells you how to fix it, usually for free. Office & Co-work CO₂ is the single strongest environmental lever on office productivity — and the cheapest to fix. Envora gives facilities teams and founders the number to argue with. CO₂ and indoor air quality monitoring for schools Classroom CO₂ and indoor air quality evidence for better ventilation decisions, measurable cognitive lift, and the data trail governors and parents want. Labs & Clinics Envora One is precise enough for laboratories, clinics and regulated spaces, and comes with a signed calibration certificate per device ID. Studios & Gyms Hot yoga, spin, HIIT and small studios generate extreme humidity and CO₂ loads. Envora tells you how your ventilation is holding up — live, per-room, per-class. Podcasts & Studios Envora flags the HVAC hum, the fridge compressor, the neighbour's drill — and the concentration drift that flattens your delivery — before the tape picks any of it up. Landlords & Letting Continuous, timestamped indoor air quality records for every unit you manage — so damp disputes end in data, not arguments.
What it protects against
All protection guides
 Mould & damp risk Invisible until it is not. Allergies & dust sensitivity The 40–50% RH sweet spot. Long-term toxic gas exposure What you cannot smell, Envora can. Cooking pollution Your kitchen is an industrial chimney. Sleep & bedroom air Sleep is an environmental sport. Winter dry air Heated air is parched air. Outdoor air events When the air outside is worse than inside.
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Theme
Buyer's guide

Best air quality monitor with no subscription

A no-subscription air quality monitor means you pay once for hardware and keep the app, alerts, history and integrations for the life of the device. That is rarer than it should be — here is what to check before buying.

See Envora One
  • No home subscription
  • Factory calibrated
  • Signed calibration certificate
  • API · MQTT · Home Assistant
  • Local-only mode available
  • 30-day returns
  • 2-year warranty
Who this is for

Buyers who want hardware they own outright — without finding out later that history, alerts or API access has been paywalled.

Feature-by-feature

Side-by-side comparison.

Where Envora One sits against the alternatives — sensors, calibration, integrations, ownership and price.

Feature Envora One Other monitors
Live readings — always free Yes Check the small print
Safety alerts — never paywalled Yes Some vendors lock alerts behind tiers
History (3 years rolling) Yes Some vendors limit history without payment
REST API + MQTT Yes Often paywalled
CSV export Yes Often paywalled
Home Assistant integration Yes Often community-only
Firmware updates Yes — for the life of the device Should be free; not always

Competitor specs are based on publicly available manufacturer information at the time of writing. Check the latest product pages for current spec.

What Envora One brings

The case for Envora One.

  • No home subscription, ever. Every feature listed above is included for personal households for the life of the device.
  • Safety alerts are never paywalled — CO, high PM2.5, dangerous CO₂.
  • Full API, MQTT, CSV export and Home Assistant — included.
  • Envora sells hardware, not subscriptions. Your readings are the point of the product, not the business model.
Best for

Pick the one that fits.

Fair recommendations for different buyer needs.

Choose Envora One

You want to pay once and own the device, the data, the alerts and the integrations — no surprise tiers, no paywalled history.

FAQ

Comparison FAQ.

Is Envora One genuinely free to run for home users?
Yes. The Home plan is included for the life of the device — live readings, alerts, app, dashboard, history, firmware updates and integrations. No paywalled features for personal household use.

What is the catch?
No catch. Envora sells hardware to organisations as well — Envora Fleet is per-device monthly billing for the multi-site, audit, SSO and reporting features organisations need. Personal households do not need any of that.

What happens if Envora goes out of business?
Local-only mode keeps every device running off your LAN with MQTT and REST API even if the Envora cloud disappears. Firmware updates are signed and locally installable. Your data is yours.

Why do other monitors charge for the app?
Some vendors fund cloud and app development by tiering history, alerts or integrations. That is a fair business model — it is just one we have chosen not to follow for home users.
Decided?

Buy Envora One — £249, one-time.

Eleven channels. Factory calibrated. No home subscription. Free UK and EU shipping, 30-day returns, 2-year warranty.

Buy Envora One — £249 See pricing in full

Free UK & EU shipping · 2-year warranty · Reply within one UK business day.