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  1. M

    Why is the CO2 level lower in my house than outside?

    From my understanding its not possible under standard environmental conditions for the outside air to be under 400ppm co2 since thats the global level for a few decades now. Therefore the outside air could never influence the inside air to be under 400 ppm.
  2. M

    Why is the CO2 level lower in my house than outside?

    house from 1950, no plants
  3. M

    Why is the CO2 level lower in my house than outside?

    Lets say over 24 hours the concentration inside is higher than outside. I still dont understand why the smaller sample size would not match
  4. M

    Why is the CO2 level lower in my house than outside?

    It comes with a temp and humidity sensor built in to compensate
  5. M

    Why is the CO2 level lower in my house than outside?

    The outside concentration can only reduce the inside concentration if the inside concentration was higher. because it is higher outside, that can only mean there is something constantly absorbing co2 inside my house or the sensor is defective. I understand there is a correlation between the...
  6. M

    Why is the CO2 level lower in my house than outside?

    im not sure what you mean by that :(
  7. M

    Why is the CO2 level lower in my house than outside?

    How is this possible? I cant think of what could be absorbing Co2 inside my house, when I am producing it at a pretty high rate. I have my HVAC running on a frequent cycle mode also. I have no plants. The sensor...
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