Filter-Monster – Replacement Filters, 4 Pack – Compatible with Holmes HAPF60CS (C Pre-Filter) for Holmes Air Purifier Models HAP8650B-U, HAP759-TU, HAP9726B-U, HAP9726-U, HAP726-U[Amazon-developed Certification] Compact by Design

I use this in my Homes HEPA Machine, model #HAP726 in front of the main filters. This filter is a perfect replacement for the Holmes Carbon filters.Recently, the Holmes Carbon filters have been getting quite holey with large holes in sections of the filters which would cause my HEPA filters behind them to get dirty very quickly.I find by using Carbon filters in front of the HEPA filters that the main HEPA filters last a whole lot longer and I only have to replace them about once a year. Which is good because they are not cheap.These filters are an excellent value are the perfect size for my machine and they have good airflow while protecting my main filters.

They were the correct fit and worked as expected.

PERFECT

Need to replace HEPA filters and carbon pre-filters regularly.These are the best for the money, and are high-quality and fit perfectly.

Works fine

I have used these filters before and they fit and work like they should. I was very satisfied with the product.

Worked did the job

We use these filters every three months to keep our HEPA filters clean and they work great highly recommend.