HEPA Filter for Filtrabox Fume Extractors

Why Choose a 99.999% Fume Extractor HEPA Filter

Laser welding generates ultrafine particles that are difficult to capture with basic filtration. A Fume Extractor HEPA Filter rated at 99.999% at 0.3 micron targets the most penetrating particle size. Therefore, it reduces exposure to respirable dust and improves perceived air quality near the point of use. When paired with an F9 prefilter, this HEPA stage maintains airflow longer and lowers total filtration cost over time.

How This HEPA Stage Works in Your Laser Welding System

Air first passes through the prefilter to remove the bulk of fine particulate. Next, the HEPA filter captures the remaining ultrafine fraction that drives health and cleanliness concerns. Consequently, the system can sustain capture velocity at the hood while returning clean air to the shop floor. This two-stage approach is well suited for local exhaust ventilation where reliability and cleanliness are priorities.

Construction and Performance Details

• Efficiency: Tested to 99.999% at 0.3 micron for ultrafine particle control.
• Media: High-surface-area mini-pleat media for high capacity and stable pressure drop.
• Frame: Rigid aluminum cartridge that resists bypass and maintains a consistent seal.
• Consistency: Precision fit for Weld-R and Vert-X housings supports repeatable performance.

Best Practices and Maintenance

Monitor the differential pressure using the system gauge. Replace the prefilter first as it loads, then replace the HEPA when the reading approaches the recommended limit or at scheduled intervals. Importantly, always install the F9 Prefilter upstream to protect the HEPA media, sustain airflow, and extend service life. For processes that release odors or vapors, add an Activated Carbon Filter downstream for gas phase control.

Compatibility

Compatible with Weld-R and Vert-X fume extractor models that use the standard HEPA size and gasket profile.

See the full line of fume extraction products, or contact our team for help with sizing, maintenance schedules, and stocking plans.

Learn more about filtration standards at OSHA.gov. For welding fume safety guidance, see OSHA resources.