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i <br /> i <br /> Ozone Test Strips <br /> Model OM-700 <br /> Ozone Test Strips represent a simple and <br /> inexpensive method of measuring ambient ozone <br /> concentrations in air. Each strip is chemically <br /> treated to react with ozone. The result is <br /> displayed in four different colors each <br /> representing a specific level of ozone <br /> concentration. <br /> F <br /> The ranges of measurement are: <br /> A.up to 0.045 ppm (parts per million) <br /> B. from 0.045 to 0.075 ppm <br /> C. from 0.075 to 0.105 ppm <br /> D.over 0.105 ppm <br /> Packaging <br /> Ozone Test Strips are packed in airtight capsules with full instructions. <br /> { Available in capsules of 12 and 30. <br /> S _ <br />