AMX 100mm/4 inch HEPA Filter Box 3-Layer Inline Duct Air Purification System

Indoor grow rooms, workshops, and enclosed spaces often struggle with airborne dust, mold spores, and unpleasant odors that compromise air quality and safety. The AMX 100mm/4" HEPA Filter Box with a 3-layer filtration system is engineered to capture 99.97% of particles down to 0.3 microns, while the activated carbon layer neutralizes odors and VOCs. Designed for inline duct mounting, it pairs seamlessly with 100mm (4-inch) fans to deliver clean, breathable air without sacrificing airflow.

Who is it for

This filter box is ideal for hydroponic growers, woodworkers, laser engravers, and anyone using inline ventilation systems who needs effective particulate and odor control. It suits both hobbyists and professionals seeking a durable, low-maintenance air purification solution.

Main features

• True HEPA filtration: removes 99.97% of airborne particles at 0.3 microns, including pollen, dust, and mold spores.
• 3-layer system: pre-filter for large particles, HEPA for fine particulates, and activated carbon for odors and VOCs.
• Galvanized steel housing: robust and corrosion-resistant for long-term indoor use.
• Low pressure drop: minimizes impact on fan performance, maintaining efficient airflow up to 250 m³/h.
• User-replaceable cartridges: easy maintenance with a lifespan of 6-12 months depending on environment.
• Inline duct design: fits standard 100mm (4-inch) ducting with included mounting brackets.

Specifications

• Filter type: HEPA (High-Efficiency Particulate Air)
• Filtration stages: 3-layer (pre-filter, HEPA, activated carbon)
• Duct connection diameter: 100 mm (4 inches)
• HEPA efficiency: 99.97% at 0.3 microns
• Housing material: Galvanized steel
• Recommended airflow: Up to 250 m³/h
• Filter lifespan: 6-12 months (depending on usage and environment)
• Mounting type: Inline duct mounting
• Compatibility: Designed for 100mm (4-inch) inline fans and ducting systems
• Operating temperature range: -10°C to 60°C
• Color: Metallic grey
• Included accessories: Mounting brackets
• Usage environment: Indoor

Tips

Regularly inspect the filter and replace it every 6-12 months to maintain optimal air purification performance. Ensure the filter box is securely mounted in the duct line and that the fan is compatible with the 100mm connection for efficient airflow.