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Model 300 HEPA Main Filter

Product ID : 42815476


Galleon Product ID 42815476
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About Model 300 HEPA Main Filter

HEPA filters provide high-quality capture and containment of particulates emitted from applications. The Model 300 HEPA filters fit Sentry Air Systems Model 300 Fume Extractors, Ductless Fume Hoods, and Portable Clean Rooms. HEPA Filters Efficiency: up to 99.997% efficiency on particles down to 0.3 microns in size MERV Rating: MERV 17 set by the US Department of Energy to ensure high-quality filtration standards HEPA filters provide excellent filtration: Bacteria Lung-damaging Dust Spores Pollen Pulverized Coal Metal Dust and Fumes Other Particulates How do HEPA filters work? HEPA filters capture particulate using four main methods: sieving, inertial impaction, interception, and diffusion. The type of filtration method depends on the size of the particle. Sieving — Sieving is when a large particle is trapped by a filter because it is too large to pass through the hole in between the filter fibers. Inertial Impaction — Inertial impaction happens with larger particles that collide directly with the fibers of the filter. Larger particles are unable to adjust quickly to the air stream due to inertia and continue along its original path directly into the fiber. Interception — Interception occurs when a particle is following a gas streamline or path and comes within one particle radius away from the fiber and brushes up against it. The fiber captures the particle and is removed from the gas flow. Diffusion — Diffusion refers to the filtration method where smaller particles move in a zigzag or random path and ends up sticking to the filter fiber. Diffusion primarily happens to particles smaller than 0.1 microns in size and with slower air flow.