Product review (5 stars): Works great, I use the fans about 2 times a ...
Longevity  Review: I have mine 3 years and I have it installed outside under roof for my outdoor kitchen.  I live in Central Florida.
I use the charcoal filter system. Works great, I use the fans  about 2 times a week on average. I thought for the price paid I'd be replacing after a year, especially outside. Very happy great product.
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