[fordb]

Anyone have experience or warnings on using "natural fiber" aka hoghair furnace filters as a prefilter?

 

[beachtan]

I would think anything made to filter your house would be treated with some kind of mildew-cide. Call the number for the manufacturer - I've been able to get info about certain filtering products that way - good luck!

 

[fordb]

Thanks for the info. Much appreciated.

 

[sirdavidofdiscus]

Alot of those aren't made to get wet. They may fall apert when submerged for any lendth of time.