Filter Media Comparisons

Higher Efficiency = Cleaner Air

The higher the MERV rating on a filter, the cleaner the air.

Donaldson Torit offers a filter solution for any application. Our latest innovation, Ultra-Web SB filters (nanofibers on spunbond) received a MERV 15 rating in independent lab testing. Get cleaner air with standard MERV 13-rated Ultra-Web nanofiber filters or choose new Ultra-Web SB filters for applications with agglomerative and abrasive dusts.

MERV ratings are established using ASHRAE standard 52.2 and are the most current and accurate ratings used to report filter performance and a filter's ability to capture particles by size.

• Ultra-Web: Cellulose substrate with Donaldson Ultra-Web nanofibers
• Fibra-Web: Synthetic substrate with Donaldson Ultra-Web nanofibers
• Ultra-Web SB: Spunbond polyester with Donaldson Ultra-Web nanofibers
• Tetra-Tex: Spunbond polyester substrate with Donaldson Tetratex PTFE membrane

Some filters also offered with carbon for anti-static, and in high temperature versions.