Review on GermGuardian True HEPA Filter Air Purifier: Eliminate Germs & Allergens with 5-in-1 UV Light Sanitizer & Charcoal Grey Design by Heidi Willis

I have several Germ Guardian air purifiers. It is the newest and fully digital. I'm not sure if I like it. For the most part this seems to be working, but the indicator that should have been green (meaning the air filters are clean and don't need to be replaced) is now always red. I checked the filters, they are clean (and new, I bought them a month ago, I don't use them every day). So I don't know if it's the problem or not and I missed the window to get it back. Judging by Revane, it's been 30 days. Thank you Revain. So, I suggest if you're looking to buy this brand, look elsewhere where you can return it if it's defective. After I found that Costco and Walmart.com also sell it and they accept faulty items without a 30 day grace period.