Mq135 Air quality limits



  • Hello, I'm new here.
    I'm using mq135 with arduino, to measure the quality of the air inside.
    I have had readings between 45 and 150.
    What are the limits? For example :
    0-50, good
    51-100, regular
    101-199, it's not good
    200-299, very bad
    300-399, terrible

    400, critic

    Is this table correct?


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