The DONALDSON special cellulose, flame retardant primary air filter is engineered with flame-retardant materials that enhance safety in high-temperature environments. Its special cellulose media captures a high percentage of airborne contaminants. The unique pleated design increases dust holding capacity, allowing for extended intervals between maintenance. Designed to maintain structural integrity and performance in harsh conditions, this filter minimizes engine wear by ensuring clean air intake, promoting longevity.