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How can I improve my indoor air quality?
There are two many ways to improve your air quality: mix it with new air or filter your existing air
Ventilation
Ventilation
Filtration
Filtration
The CR Box: A homemade, DIY tool to improve your air quality
A CR Box (Corsi-Rosenthal Box) is a simple DIY project made out of a box fan, high rated HVAC filters, and duct tape.
It's extremely effective at removing dust, mold spores, odors, pollen, smoke, and cold & flu viruses from the air.
You can visibly watch it get dirty over time.
When the HVAC filters look gross, simply remove and replace with new ones.
CR Box Instructions_English.pdfCR Box Instructions_Spanish.pdfPage updated
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