Why Choose Donaldson Blue® Filters Donaldson Blue filters with Ultra-Web® media provides superior protection over traditional cellulose filters with up to 99.99% efficiency, delivers better protection for high-dust applications. The Donaldson Blue Filter Can Perform in extreme temperature and humidity. It’s also designed to Shed dust during equipment vibration for a longer filter life with fewer changes. This allows On-highway trucks to go twice the distance compared to standard cellulose filters.