All Valent condensing fans have serrated blades that are up to 12 dB quieter than paddle fan blades. Why can we thank owls for this technology?
Owls have large wings compared to their small body mass, which allows long, silent glides in pursuit of prey. When owls do beat their wings, however, their serrated wing tips break up turbulent air and produce almost no measurable sound. (Want proof? Check out this sound lab video of an owl in flight.) With a wingspan of up to five feet, owls can move a lot of air, and so their ability to remain quiet while hunting has enhanced their ability to survive.
All Valent condensing fans have serrated-edge blades, which are up to 12 dB quieter than paddle fan blades.
Inspired by the owl's powerful but quiet flight, Valent's fan manufacturer designed fan blades that mimic an owl's wing. Their fan's serrated-edge blades are significantly quieter than paddle fan blades. If you would like to hear this for yourself, watch the Ultra-Quiet Condensing fan video recorded at Valent's Technical Product Center in Minneapolis, where you can see a dB meter measure two condensing fans as they power up. The condensing fan with the serrated-edge blades is up to 12 dB quieter than the condensing fan with the paddle blades.