Temp, Humidity CO2 sensor and library.

Thanks for the quick response Rob!
I got the code to work in conjunction with the library however I seem to have the same issue that Toledor is having. My readings are :

Celcius : 0.20
Fahrenheit : 32.36
Humidity : 0.20
CO2 : 2
Digital Filter : 2

There is no change to these results, any idea what the cause might be?

Also the polling mode doesn't seem to be working properly . I un-commented the line which allowed the CZR_POLLING mode, however the code still spits out readings infinitely.