Zigma H13 True HEPA Replacement Filter for Aerio-300

I wasn’t sure if I needed this or not. It rarely ran on automatic, so I set it to run full time. Boy, does it collect the dust. I have 3 big dogs and was constantly seeing dust. With this purifier, I don’t see nearly as much dust on my furniture, but the filter is very dusty. I don’t notice any dog odors like I use to. It is very noisy though. I am definitely happy with it and thinking of buying another for upstairs.