Does anyone know what you can use to clean a CFM brand windshield ?

Glass or poly ?

I use a glass cleaner call spray way.You can get it at a hardware store and i think wal mart in the automotive section.
It's a good glass cleaner that will not hurt poly.

Glass or poly ?

I would go with Poly. Def not glass

I use a glass cleaner call spray way.You can get it at a hardware store and i think wal mart in the automotive section.
It's a good glass cleaner that will not hurt poly.

Great, thanks

Depends if it is poly or glass. 
If it is poly, suggest you read the following article.
https://www.superatv.com/offroad-atlas/how-to-clean-and-care-for-your-polycarbonate-windshield/