摘要 |
A device using the failure of a material decomposable by ozone to indicate a predetermined ozone exposure. In the preferred embodiment, a plurality of contact rods stretch latex to varying thicknesses to indicate more than one level of ozone exposure upon failure. The device can be made compact and portable, usable as a personal monitor. In an alternative embodiment, material such as rubber in the shape of O-rings is employed as the material decomposable by ozone.
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