CO2 Test Kit – $14.95 CO2 Test Tube – $3.95 (10) CO2 Test Tubes – $39.95

This inexpensive CO2 test kit allows you to check the concentration of CO2 in your room. Simply draw in 100 cc's of the room's air into the syringe, break the ends off a tube and insert the tube into the syringe. Next, slowly force the air through the tube. The CO2 concentration is where the purple color stops and the white begins. Replacement test tubes are available which makes testing very economical. It includes one 100cc syringe, two CO2 test tubes and instructions.

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