Seal Supply 4 Pack of Idylis B Carbon Activated Pre Filters Machine Precut Compatible with Following Idylis Purifier Models IAP-10-050, IAP-10-150, IAP-10-125

This is it.I have an Idylis air purifier that takes B filters. These are an exact fit; thickness too, not just width and height.Made in the USA.They appear to have more carbon. A notecard came with saying there's 30g per square foot. I don't know what the stock one have.The product arrived within the delivery window.There was a bow to the filters when I received them. My wife opened the package so I'm not sure if it was from the packaging or the shipping. Ultimately it didn't matter because the velcro tabs on the HEPA filter frame hold it in place just fine.Bottom line:I am very pleased with this product and will continue to buy from this seller.

These filters are a perfect fit for my air purifier. They do an excellent job of filtering the air intake before the air reaches my HEPA filters. It is amazing how much they filter out of the air in my home. I like finding good products that do a good job.

These are the best pre-filters I've seen on the market. You almost don't need the actual filter itself. Enjoy!

Works great! Cut to fit and reasonable!

It fit perfectly

It fits the Idylis perfectly.

great product