GermGuardian AC5900WCA

I got this because it has the UVC lamp inside the center, with a titanium dioxide plate which is supposed to actually kill germs and viruses and mold,...

Basically, in three hours and fifteen minutes, we were able to reduce the particle count by ninety nine point: nine percent. I give this air purifier ...

So we did a research and we ended up buying this jim guardian ac 5900..

This purifier has three speeds: Extremely fast/loud, very fast/loud, and super silent. The super silent speed moves almost no air, but the other two speeds are far too loud. There is almost no difference between high and medium, but then low is just super silent and moves almost no air. I really wis...

Bummed because I have the smaller units from the same company and they can be setup to be a nice balance between quietness and airflow, with 5 speed steps. We needed one for a bigger room, so assumed bigger fan would be slower/quieter for the same flow, and have a good balance of speed/noise across ...

I wanted to like this but the simple fact of the matter is, its just too loud unless you keep it at the lowest setting, in which case it barely blows any air at all. After sitting in the room with it on the medium setting for a couple of hours it almost seems like some new kind of torture. I kept te...

Might be better off buying a box fan and an a filter for an air conditioner and just taping them together, to be honest. The airflow and performance on this, for $200, is only fine. Not very powerful for how loud it is. One funny thing is - if you leave it on for a few days in an enclosed room, you ...

I wish products gave decibel or is it called Sone levels. Whatever they should be up front about that and then give some common every day items as examples of that rating. This is way too loud so is hidden in a utility room doing very little for our house. But that utility room does smell great…

..when reviewers said this thing was loud. But it really is very loud– like warehouse fan loud –and the difference between the medium and high setting is negligible. Quite silent on low setting though. Shame there’s no proper speed setting between low and high.

I now have 2 of these in my home. I have pet rats, a dog, a cat, and my roommates have 2 dogs, birds, and a cat. My husband and I are both very sensitive to allergies and before I had this when I first moved to the PNW, I was constantly suffering from my allergies. My place has no windows so there i...