This filter is too strong. I regret using them for so long. My A/C was making a whistling noise at the intake, like air whistling. He struggled to get enough air. I replaced it with a cheap 3M Filtrete Basic pleated filter and it's much quieter. I felt air coming out of the vents before and after the replacement and there is no comparison. This at least doubled the airflow. I've never seen much benefit from the allergen reset feature. I worked so much with the air conditioning because it did almost nothing. Save your money, save your AC system and don't buy those reconfigured troublemakers.
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