Hi, I have been looking for ONA, but cannot find any locally. There is a product from Grotek that is also an odor neutralizing agent, but I'm unfamilliar with it. A local store owner says it's the same thing. Apparently you get crystals, and a liquid that you use when the crystals dry out. Is this just as effective as ONA? (Looking to create a bucket/fan system as described in an earlier thread) Is it safe to breathe the air after it's been filtered through this stuff? Thanks in advance!!
