Did it occur to you that sometimes your laser printer smells funny? It seems that these printers release ozone and you'd get to smell the dangerous gas if not for the filter in the machine to absorb it. Now, with the laser printer becoming such an integral part in our life, I wonder how on earth do we keep the earth green? Filtered or not, the gas must go somewhere in the end and wherever they go, they still end up somewhere in the earth's atmosphere and that means, they are going to stick with us right to the very end! Such a good friend indeed, this dangerous gas!
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