I’ve purchased several air filters during this critical fire smoke pollution time. I have a AQI meter that measures the particulate count in smoky air. These air filters do make a significant air quality improvement of indoor air if you leave the “recirculate” fan turned on. At the worst, we had an AQI of 400, but inside it was less than 100. I found the best filter was to use the highest rated filter at the lowest price and this one won out. I now have four years worth of filters in my inventory. R
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Avery good quality product for my a/c
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Have bought these filters multiple times. Work well.
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Quick shipping
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