I'm currently building an adapter to mate furnace filters to quiet, high static pressure fans. This should keep the same volume of filtration as a box fan, but

I'm currently building an adapter to mate furnace filters to quiet, high static pressure fans. This should keep the same volume of filtration as a box fan, but lower the noise significantly. I'll probably be ordering a batch of 5-10, if interested, email me (link in profile). Or comment, as long as you have an email in your profile, I suppose.