Subject: Air Purifier Question!
Hi Mark,

Hope you're doing well!

I finally got around to setting up the AeroPure 5000 we bought last month. It seems to be working great, but I'm a bit confused about the maintenance. I know there are different filters, but I can't remember which ones need to be replaced and how often. Also, I saw a flashing orange light earlier, and I wasn't sure what that meant. I think the diagram that came with it has all the info, but I've misplaced it.

Could you quickly look at the diagram online and let me know a few things? Specifically:

1. Which filter is the most expensive to replace?
2. How often should I replace the carbon filter?
3. What does the flashing orange light indicate?
4. And also, how big of a room is this model actually good for? My living room is pretty large, about 400 sq ft.

Thanks a bunch!
Cheers,
Sarah