Does the job
So we'd had a leak in a wall, and the drywall had been entirely replaced, but there was still an odor from the studs, which had been treated with bleach and so on.  Frustrating that we still had a faint mold smell and nothing to be done.  But the GermGuardian has worked really well at neutralizing the smell.  I plugged it in close to the leak area, and with just the faintest hum it does the job.
Rating: 5 stars