NOₓ: gas stoves, traffic, asthma
Nitrogen oxides come from combustion. Indoors, the main source is a gas stove. The health link with childhood asthma is robust.
Articles tagged "Combustion"
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Ultrafine particles: what the sensor cannot see directly
Below 100 nanometers, particles get small enough to cross from lungs into bloodstream. The SEN66 sees PM₁ but stops there.
Sulfur dioxide: the outdoor number for fuel and fire
SO₂ comes from burning sulfur-bearing fuels: coal, heavy oil, diesel ships, volcanic activity, and wildfires. The device does not measure it; the dashboard pulls it from Open-Meteo.
Gas-stove cooking: the fingerprint
A pan on a gas burner produces a remarkably consistent multi-pollutant signature: NOx, ultrafine PM, VOCs, and humidity, all rising and falling together.
Candles and incense: small flame, big PM spike
A single candle can push a small room past 100 µg/m³ PM₂.₅ in under ten minutes. Incense is worse.
Attached garages: the highest-risk source in most homes
A running engine ten feet from your living space. Cold-start emissions are the worst. Door seals matter more than you think.
Wood stoves and fireplaces
Solid-fuel combustion produces the largest, longest-lasting PM event most homes ever see indoors. Even a well-tended fire shifts the baseline for hours.
Vaping, smoking, and cannabis
Combustion and aerosolization indoors. Tobacco smoke, cannabis smoke, and vape aerosol all show on the sensor; the health profiles differ significantly.
Combustion sources, an overview
Anything that burns indoors produces a multi-pollutant signature: NOx, fine particulates, VOCs, ultrafines, and (sometimes) CO. The dashboard has a shared interpretation framework for all of them.
Cooking fingerprints in depth
Gas, induction, electric, grilling, frying, roasting. Each cooking method has a distinct multi-parameter signature.
Reducing NO₂ and NOₓ indoors: source elimination first
Indoor NOₓ comes from combustion. The intervention hierarchy starts with eliminating sources and ends with capture-and-exhaust for what remains.
Cannabis smoke indoors: a distinct profile from tobacco
Combustion is combustion: PM2.5, CO, PAHs, benzene. Cannabis adds THC and CBD aerosol and a different terpene signature. The dashboard sees it as a tobacco-shaped event with a longer VOC tail.
NOx Index vs NO₂
NOx Index is a combustion-pattern signal. It is not a regulatory NO₂ concentration measurement.
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One sensor. Twelve signals. Indoor readings connected to outdoor context and plain-English recommendations. Everything you just read can be measured live in your own home.
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- CO₂
- IAQ
- VOC
- NOₓ
- PM1
- PM2.5
- PM4
- PM10
- Temperature
- Humidity
- Pressure
- Light
Included
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Works with
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- MQTT
Home Assistant
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