The DONALDSON Obround Cellulose Flame Retardant Primary Air Filter features an advanced obround design that maximizes airflow efficiency, contributing to improved engine performance. It is constructed with high-grade cellulose media, which offers excellent dirt-holding capacity, delivering long-lasting protection under demanding conditions. The inclusion of flame retardant properties significantly reduces fire risk, promoting safer vehicle operation. This air filter is suitable for high dust environments, allowing for extended engine maintenance intervals. Furthermore, it is resistant to both moisture and heat, maintaining filtration integrity even in extreme conditions.