International Association of Air Cleaners Free Ozone Test Kit – US

“Easy to Use and Simple: OzoneWatchTM 1 Hour Ozone Test

How do you know if your air purifier is producing ozone, a known lung irritant? Test it with an OzoneWatch. OzoneWatch is a simple, effective, convenient and inexpensive test for ozone. Each OzoneWatch kit contains 2 One-Hour Tests in a vacuum-packed pouch.”

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