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.
Articles tagged "Sources & scenarios"
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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.
Cleaning products: the VOC spike you can smell
Pine, citrus, ammonia, bleach. Most cleaning products produce sharp VOC spikes; some combinations are acutely toxic.
New furniture and paint: the slow VOC bleed
Particleboard, foam, finishes, and many paints off-gas formaldehyde and other VOCs for weeks to months. A new sofa changes the room's baseline.
Bedroom overnight: the COâ‚‚ climb you sleep through
Two adults in a closed bedroom can push COâ‚‚ past 2,000 ppm by 4 AM. The math is unforgiving.
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.
Bathrooms and showers
A hot shower is a daily humidity event with a side of cleaning-product VOCs. Recognizable, mostly harmless, occasionally a mold-risk signal.
Moving into a new home
The first month is when off-gassing peaks, cleaning is heaviest, and the dashboard learns your normal. Expect noise; expect resolution.
Holiday and gathering patterns
Turkey day, parties, holiday candles, family visits. Combined source events look different from any single source.
Cooking fingerprints in depth
Gas, induction, electric, grilling, frying, roasting. Each cooking method has a distinct multi-parameter signature.
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