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Articles tagged "Comfort"

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Humidity: the 30 to 50 percent rule

Below 30%, your throat dries out and viruses last longer. Above 60%, mold and dust mites thrive.

Updated 2026-05-25

Temperature: comfort, sleep, productivity

ASHRAE defines a comfort zone. The bedroom is its own special case: cooler is better.

Updated 2026-05-25

Dew point: the number that says it's sticky

Relative humidity is relative to temperature. Dew point is absolute. If you want to know whether the air is "muggy," dew point is the number.

Updated 2026-05-25

Apparent temperature: what your body feels

The thermometer reading is just the air. Heat index and wind chill account for humidity and wind: closer to what your body experiences.

Updated 2026-05-25

The feel of air

Sometimes the air feels wrong even when all the numbers look normal. The dashboard integrates several parameters into a subjective-experience model that explains why.

Updated 2026-05-25

Breathe Better. Live Smarter.

Turn air-quality knowledge into action.

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.

$249 USD one-time

Buy Terrestream Explore the sensor →
  • No subscription required
  • 30-day returns
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Six sensors. Twelve signals.

Built on genuine Sensirion, Bosch, and Texas Instruments sensors.

  • COâ‚‚
  • IAQ
  • VOC
  • NOâ‚“
  • PM1
  • PM2.5
  • PM4
  • PM10
  • Temperature
  • Humidity
  • Pressure
  • Light

Included

  • In the box: the sensor, USB-C cable, power adapter, and printed field guide
  • Dashboard and mobile app included
  • Privacy-first air data

Works with

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  • MQTT
Terrestream $249 USD Buy

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© 2026 Aerodyne Inc. Terrestream®, the leaf logo, and “Breathe Better. Live Smarter.®” are registered trademarks of Aerodyne Inc. Patents pending.

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Aerodyne Inc. · Dover, Delaware, USA

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