Review on VEVA Precut Premium Carbon Pre Filters 4 Pack for HPA300 HW Air Purifier - Easy Installation & Advanced Filtration by Linda Lewis

I've read some reviews and seen pictures they didn't fit and I almost returned them but I think I understand what's going on. So my first attempt to install them on my HPA300. There was an obvious gap between the frame and the filter where the HEPA filters could clearly be seen. When I put the Honeywell filter next to the Veva filter I was stumped, they are exactly the same size, why am I seeing a gap? I think this is because they are sent folded. After I folded the filter in the opposite direction to work out the crease, it fit perfectly with no gaps. Use Velcro to keep it in shape so the filter doesn't collapse on its own. I'm actually thinking about adding a few more things to support this filter. I would have preferred them delivered unfolded but for the money I saved it's worth it. They feel just as strong and thick as the one that came with my cleaner.