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OZONE test sticks, analysis ozone-content in the air
A simple test to determine the level of ozone in the air.
Application: The test strip is placed at a location that is sheltered from the wind. Ten minutes later, its colour is then compared to a colour scale.
| Verification of | O3 |
| Gradation | <90, 90–150, 150–210, >210 µg/m³ |
| Colour conversion | from white to brown |
Ships within 48 hours · Estimated delivery Aug 1 - Aug 6
US$40
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