WSO•Series style filters are engineered to fit original Donaldson WSO equipment. Constructed with a combination of glass mat and hydro/oleo resistant synthetic fibers, WSO•Series filters properly catch and release airborne aerosols for high efficiency and long life.

All pre-filters, primary cartridges, and final filters suited to handle your tough oil-mist and oil-smoke applications. DHA Filter can significantly reduce your bottom line while maintaining your mist collector performance.