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The MaxMERV9 is our newest filter design, using the latest polypropylene weave technology to achieve a MERV 9 rating. That is the highest MERV rating given to any permanent, washable filter on the market today. We did not cut corners in developing the MaxMERV9. It features a super strong and lightweight aluminum frame and corrugated grid with double rivets and extra drain holes. This filter has a slightly higher air resistance rating but still provides better airflow than most quality pleated disposable filters. Like all of our filters, it develops a natural electrostatic charge as air passes through the media layers. This static charge captures and holds onto dust particles until the filter is cleaned. Designed for residential use, the frame is durable enough to be used in commercial or industrial applications. If you are looking for a permanent, washable filter that will capture the most dust and trap the smallest particles, the MaxMERV9 is your choice.
This filter is 7/8 inch thick
PEAK ARRESTANCE: 83.2%
INITIAL RESISTANCE: 0.252" WG
DUST HOLDING: 68 grams
AIRFLOW RATE: 295 FPM
END POINT OF TEST: 1.00" WG
MERV RATING: 9
I have only had the Never Buy Another Filter in my system now for 7-10 days but the air does smell MUCH fresher. The mold smell in my down stairs that was present much of the time is nearly gone and only shows up after the rain. I am very pleased with it so far.
works great saves money
The construction of this filter seems to be quality. The MERV rating matches that of the disposable filters we’ve been using for years. The new one does not seem to interfere with air flow, but it is hard to judge utility cost difference since we have such high temps currently. Dust / particulate control is on par with the prior disposables. Over time, I feel this filter will save us money since it is washable. Very pleased with this purchase at this point.
Makes an added whistling noise. Other than that haven't had it long enough to give good review
Best filter ever, worth buying it