In this video I go over the forgotten indoor air quality pest, Carbon Dioxide. Outdoor air readings are roughly in the 400ppm range. Indoors, we want to see that number below 1000ppm preferably in the 900’s or lower. I’m rocking the Testo 440 and 323 probe, a great asset to any HVAC tech’s tool bag. Happy HVACing!
***Save 8% on your tool purchases at trutechtools.com with promo code “knowitall” at check out.***
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Testo 440
https://www.testo.com/en-US/products/testo-440
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The HVAC Know It All Podcast
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Check out my podcast, HVAC Know It All Podcast, on Anchor: https://anchor.fm/hvacknowitall
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