How Purrified Air eliminates litter box odor. See this video test.

We put a Purrified Air litter box filter to the test in a chamber filled with ammonia fumes and a sophisticated meter to gauge the results. Ammonia is the chemical in cat urine in sufficient concentrations to produce its uniquely awful smell. Spoiler alert: we killed it.

ammonia fume test

ammonia test ppm

 Here's the link:

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