1. Premium quality Polyurethane, soft with strong toughness, fit with
housing tightly to guarantee all the air is clean before entering engine
2. Enough folded paper with enough filtration area to reduce fuel consumption.
3. Dehumidification and moisture proof.
4. Excellent air permeability with low airflow resistance.
5. Premium dust holding performance with long life time
6. Stable quality during whole warranty quality period.
