International Association of Air Cleaners Free Ozone Test Kit – US
Jul 5th, 2008 by Brian
“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.”
http://iaacm.org/freeozonetest.html
