I already had a 45I and 65I, but forest-fire AQI in the Pacific Northwest was so bad I recently added your on-sale classic. I am disappointed. On automatic, it runs in the orange when, right next to it, the 65i or 45i is in the green or even blue. When running on automatic the Classic is almost always in the orange. Even when I run it in a small closed bathroom for a while, it still shows orange. I would like to return it.
The product seems to be working well. My one suggestion is to tell people as part of the first step before turning it on that they need to insert the filter.
Our entire house has an Alen in every room. You can feel the difference and there's no dust anywhere. These air cleaners are amazing and when one of our unit was making a little noise recently, we called Alen and they sent out a new unit no questions asked. Incredible lifetime guarantee!