I had my princess 6 months ago, and in that six months, she has probably been sick a month out of that. I knew major changes needed to happen because every sickness has led to her having ear infections. I have made my older son, who goes to school daily start washing his hands before ever touching her, and we have received a Honeywell HPA 100 Air Purifier to cut down on the allergens that could be effecting her. We have two birds, two dogs, and a cat and live in Florida. This means that there is pollen and pet dander a plenty in our home, so I need something that help my princess feel better, and we seem to have found that with the Honeywell Air Purifier. We have been using this about two weeks, and have set it up on the nightstand right next to where the princess sleeps and I am proud to report, she has had NO EPISODES of illness in this time. This is the longest we have been in MONTHS.
The Honeywell HPA is also really quiet, but I love the white noise that it provides in the background as well. I think this helps her (and me) sleep much more restfully. I do not use the automatic shut off timer, and choose to shut if off when I wake up, but it has a 2,4 and 8 hour shut off for that as well.