VANTIL
Dusk over a hillside home with mountains and city lights in the distance. On a stone ledge in the foreground stand the two VANTIL prototype nodes: Sentinel, a tall cream and bronze cylinder with a glowing seam, and Scout, a low, dark, rounded disc.
In development · early interest open

Understand the environments we live in.

The air outside your home changes all day, especially near a freeway, and one indoor number cannot tell you why yours moved. VANTIL pairs a Sentinel sensor inside with a Scout sensor outside, learns what is normal for your home hour by hour, and says in plain words what changed and whether it showed up indoors, outdoors, or both.

  • Indoors, or from outside?See whether a change in your air showed up indoors, outdoors, or both.
  • Judged against your homeEvery hour is compared with what is normal for your home, not a generic number.
  • Readings it checks firstEach reading is tested before it is trusted. A failing sensor is flagged, not believed.
  • Less to watchA plain-language read of what changed, instead of a wall of numbers to interpret.

How it fits together

Two sensors and a baseline for your home.

Rush hour, an open window, dinner on the stove: the air in a home changes all day and you cannot see it. VANTIL watches it from both sides of your wall and tells you what changed, in plain words.

SENTINEL · INSIDE

The air you breathe

Sits in a room and measures particles, carbon dioxide, gases, temperature and humidity.

SCOUT · OUTSIDE

The air around it

Sits just outside and measures the same things, so you can see what the outdoor air was doing at the same moment.

YOUR HOME'S BASELINE

What is normal here

VANTIL learns what is normal for your home at each hour of the day. A reading is judged against that, not against a number from a monitor miles away.

Put the three together and VANTIL can show what changed, how large it was for your home, and whether the outdoor air moved too, so you do not have to watch numbers and work it out yourself. It does not say what caused a change.

See it working

A real home, read in plain language.

The live prototype shows what Sentinel and Scout are reading in the test home right now (about 30 minutes behind), what VANTIL makes of it, and one real recorded event replayed minute by minute. Nothing there is invented.

Why Sentinel and Scout

Sentinel indoors. Scout outdoors.

Your air quality app describes your city. Your lungs live in your home. Public numbers come from monitors that can be miles away; two nodes, one inside and one outside, show whether a change appeared outdoors too, and in what order.

The VANTIL prototype nodes on a stone ledge at dusk: Sentinel, a tall cream and bronze cylinder with a glowing seam, beside Scout, a low, dark, rounded disc.
Sentinel (left) and Scout (right), current prototype units.
SENTINEL · INDOORS

The node that lives in your home

Measures fine particles, carbon dioxide, volatile compounds, nitrogen oxides, temperature, humidity and pressure in the room it sits in.

Sentinel details

SCOUT · OUTDOORS

The node that watches the outside

Measures the same particles and gases just outside, so every indoor change can be set against what the outdoor air was doing.

Scout details

How it works

Sentinel and Scout sense. VANTIL Intelligence explains.

Sentinel · the indoor environment

Sits in a room and measures the air you actually breathe: particles, carbon dioxide, gases, temperature and humidity.

Scout · the outdoor environment

A smaller sensor just outside the home, measuring the same things, so the outside air has a voice too.

VANTIL Intelligence · the interpretation

Reads both together, learns what is normal for your home, and shows what changed and whether it is appearing indoors, outdoors, or both.

Comparing what is inside with what is outside, minute by minute, is what lets VANTIL show whether a change is appearing indoors, outdoors, or both. It does not identify the source. Every reading is checked before it is trusted.

Read how it decides what to believe · The system in detail

Sentinel Scout Dataqualification Baselineswhat is normal Eventswhat changed Learning andvalidation Knowledgeonly what is proven human feedback

What an explanation looks like

A change, and the reason for it.

Illustrative example, not a live reading

Fine particles indoors rose to about three times this hour's normal, a few minutes after the outdoor reading rose. Outdoors moved first and indoors followed.

That is the shape of what VANTIL is built to say: what changed, how large it was against your home's own normal, and what the other sensor was doing at the time. It reports the timing. It does not say what caused either rise.

What it measures

Particles, gases and climate, read together.

  • ParticlesFine and coarse dust (PM1, PM2.5, PM10) and particle counts by size, the signature of smoke, traffic exhaust and cooking.
  • GasesCarbon dioxide as a measure of ventilation, plus volatile organic compound and nitrogen oxide indices that respond to chemicals and combustion.
  • ClimateTemperature, humidity and pressure, because they change how every other reading should be interpreted.
  • Sensor integrityEvery reading is checked before it is trusted. A failing sensor is flagged instead of silently believed.

The approach

Honest about what it knows.

Most monitors show a number and a colour. VANTIL is built to say why. It is also deliberately conservative: what it has noticed is kept separate from what it has proven, and it says plainly when it does not know yet.

How VANTIL decides what to believe

Where it stands

Working today, in a real home.

VANTIL is being developed and tested in a home beside a major freeway in Southern California. The hardware is still prototype hardware and the learning system is still accumulating data.

Not yet available. VANTIL is in development and there is nothing to buy today: no price, no pre-order and no ship date. Joining the early interest list is how you follow development and hear about future availability, give feedback, or possibly take part in testing.

Questions

Plain answers.

Can I buy VANTIL?

Not yet. VANTIL is in development and is not available to buy today. There is no price, no pre-order list that reserves anything and no date. Leaving your details means we will write to you about progress and, when there is news, about availability.

Is it a medical device?

No. VANTIL measures air and describes how it changes. It does not diagnose, treat or predict any health condition, and it should not replace advice from a clinician.

Where do the readings go?

Readings go to a private analysis system that is not open to the public. This website collects only what you type into the form.

Why homes near freeways?

That is where the indoor versus outdoor question matters most, and it is where VANTIL is being developed. Traffic exhaust can reach indoor air through gaps and open windows, and an indoor monitor alone cannot show whether the outdoor air moved too.

How accurate are the sensors?

The current prototype uses low-cost sensor modules, which are good at showing change over time and weaker at absolute values. That is why VANTIL compares each reading with its own baseline and checks sensor health continuously.

Early interest

Be part of what's next.

Join the early interest list to follow development and be notified about future availability. We ask for no more than we need. See the privacy note.