EF100 (Hepa Prefilter)

EF100: Hepa prefilter, 50–85% efficiency. MERV 10.

Best for: ✓ Dust Collection, ✓ Welding, Grinding ✓ Metalworking (pre-filter stage)

Filter Model	Particle Size Efficiency	Material	MERV Rating	Key Features / Function
EF100 Prefilter	1.0 – 3.0 µm: 50% – 64.9% 3.0 – 10.0 µm: 85%+	80/20 Cellulose/Polyester Blended Media	MERV 10	Prefilter for large particles, extends HEPA filter life.

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