These filters are a perfect match for Winix purifiers, offering comparable quality at a lower price. They fit flawlessly, maintain excellent air quality, and last as long as the originals. Easy to install, cost-effective, and eco-friendly with minimal packaging. Highly recommended for any Winix user looking to save without compromising performance. Read more
Great product. I received this in a sturdy box and very well protected. All filters came in great condition when I opened and inspected them. The price was less expensive compared to the brand name ones. It fits perfectly and performs well. I have two cats so it’s doing the job needed. Read more
I kept putting off ordering replacement filters from Costco because they’re so expensive. I don’t know why it took me so long to check Amazon for comparable filters for my air purifier, but I was pleasantly surprised to find these. As you can see, I was VERY overdue for a replacement. I was able to get a box of 4 for about the price of one Costco replacement. They’re more affordable and the quality is just as good. I will be ordering all my replacement filters from this company going forward! Read more
These are a perfect replacement for the OEM HEPA filters in my Winix C545 air purifiers at a fraction of the OEM price. They are exactly the same size as the OEM filters and, as far as I can tell, they perform just as well. I'll be buying these again when I need to replace the filters again! Read more
These filters are appropriate for the Winix air purifier sold at Costco. They perform as expected for my home and the nature of the product. However, the air purifier itself is not as beneficial for removing odors from the home as I would like. Particulates from the air, including dust and pet hair is significantly reduced when using the device with these filters, though. Therefore, rating the filters only, I would offer four stars but only three for the Winix device itself. Read more
Perfect fit and affordable Read more
Works well for my Windex C545, I did have to reset the purifier, but I always had to do that with the branded filters anyway. Once reset, it's good to go and the app picks up the new filter too. Happy with it. Looks built the same on the outside when compared to the branded one. I knew I needed to change my filter even though my purifier wasn't indicating I needed to because the air it was pushing out smelled. Once I changed it out with these new filters, no smell so I'm happy. Can't say how long these will last, but I'll update once I have to. For reference, I installed the new filter on 9/8/25. Read more
Seem to work fine. These are cheap enough that you can afford to swap in a new one when the old one looks full. Read more