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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.
Pricing Compare Guides Insights Contact
Theme
Guides

Indoor air, in practice.

Practical guides on what to measure, what good and bad looks like, and what to do about it. Written for people who need the numbers, not just a coloured light.

Compare Envora
  • No home subscription
  • Factory calibrated
  • Signed calibration certificate
  • API · MQTT · Home Assistant
  • Local-only mode available
  • 30-day returns
  • 2-year warranty
Guide · 6 min

CO₂ monitor for home: what to look for

A CO₂ monitor for the home is the single most useful air quality investment most households can make. CO₂ rises minute-by-minute as people breathe, and rising CO₂ is the most reliable proxy for poor ventilation.

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Guide · 7 min

How humidity monitoring helps prevent mould

Mould is not a mystery. It grows where relative humidity stays sustained on a cool surface — and the warning signs show up in continuous humidity data weeks before there is anything to see on the wall.

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Guide · 6 min

PM2.5 from cooking: how to see and reduce indoor pollution

PM2.5 from cooking routinely dwarfs every other indoor pollutant in UK homes — frying, grilling and toasting all produce dense plumes of fine particulates that can take hours to clear without ventilation.

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Guide · 5 min

VOC monitoring after renovation, decorating or new furniture

Volatile organic compounds (VOCs) from fresh paint, new MDF furniture, sealants and adhesives can keep a room well above outdoor air for weeks — sometimes months. A continuous VOC sensor tells you when the room is safe to sleep in.

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Guide · 6 min

Bedroom CO₂ and sleep: what indoor air data can show

The single most under-appreciated factor in how you wake up is how high the CO₂ in your bedroom went between midnight and 6 AM. Most closed-door UK bedrooms exceed 2,000 ppm by morning.

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Guide · 5 min

Air quality monitors without subscriptions: what to check before buying

Air quality monitors that paywall their app, history or integrations are common — and the paywall is often invisible until you have already bought the hardware. Here is a checklist before you spend £100–£400 on a device.

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Guide · 5 min

Air quality monitor with API, MQTT and Home Assistant support

If you want a serious indoor air monitor that integrates cleanly into Home Assistant, your own dashboards or InfluxDB — these are the things to check before buying.

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See the numbers yourself

Buy Envora One — £249.

Eleven channels, factory calibrated, no home subscription. The same instrument these guides assume you have.

Buy Envora One — £249 Pricing in full

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