Stainless Steel Box-Type Combination Filter – HEPA + Activated Carbon, Handle-Equipped for Total Air Purification
Our custom stainless steel box-type combination air filter is the all-in-one solution. It pairs medical-grade HEPA filtration (traps dust, pollen, bacteria) with high-density activated carbon (eliminates odors, VOCs, and chemicals) in a durable stainless steel frame-plus a built-in handle for easy installation and replacement. Perfect for industrial spaces, commercial buildings, or any environment where clean, fresh air is non-negotiable.
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Basic Information
| Brand Name | Huazhijie | Product Name | Combined Filter |
| Frame Material | 304/316 Stainless Steel (customizable) | Filtration Layers | HEPA (H11-H14) + Activated Carbon (800-1200 IV) |
| Dimensions | Custom | Carbon Type | Coconut Shell/Coal-Based |
| Initial Air Resistance | ≤120Pa (H13) at 300m³/h | Dust Holding Capacity | 300-400g/m² (varies by HEPA grade) |
| Operating Temperature | -20℃~60℃ (-4°F~140°F) | Operating Humidity | ≤85% RH (non-condensing) |
| OEM | Yes | Certifications | ISO 9001 |
Configuration Options:Standard Models
| Model Size | HEPA Grade | Carbon Weight | Typical Airflow |
| Compact | H11-H13 | 1-2 kg | 500-800 m³/h |
| Standard | H11-H14 | 2-3 kg | 800-1200 m³/h |
| Large | H11-H14 | 3-5 kg | 1200-2000 m³/h |
Custom Features
- Carbon Selection: Standard, impregnated, or blended media
- HEPA Options: Various efficiency grades and media types
- Frame Finish: Brushed, polished, or coated stainless steel
- Handle Styles: Recessed, foldable, or heavy-duty designs
Why Our Combined Filter Stands Out in Every Way
- Tough Stainless Steel Frame – Built to Last
- Built-In Handle:10-Second Install/Remove;Secure Grip;Position Flexibility
- Dual-Action Filtration: HEPA + Activated Carbon
- Fully Customizable – Fit Your Space Perfectly
Where Our Combined Filter Works Best
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Industrial: Factories, warehouses, or workshops-blocks dust, oil mist, and chemical fumes.
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Commercial: Restaurants (eliminates cooking odors), hotels (keeps lobbies fresh), or offices (removes formaldehyde from new furniture).
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Medical & Labs: Clinics, cleanrooms, or research facilities-H13/H14 grades meet strict purity standards.
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Food & Beverage: Processing plants or commercial kitchens-stainless steel is easy to sanitize, and carbon neutralizes food odors.
Why choose us?
✅10+ Years of Manufacturing Experience: Specialized in air filtration, with ISO9001 and other patent certifications.
✅ Factory Prices: Direct sales eliminate middleman markup-save up to 20% vs. distributors.
✅ Fast Customization: Tailored filters ready in 15-20 days; standard models ship within 7 days.
✅ Global Support:Our professional team provides 24-hour consulting and usually responds within 4 hours. We can also assist remotely with filter installation, debugging, and maintenance.
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Frequently Asked Questions (FAQ)
Q: What's the real advantage of a combined unit over separate filters?
Think of it as a complete air quality toolkit in a single, sleek box. Instead of buying, storing, and installing two separate filters, you get one integrated unit that handles both particles and gases perfectly. Our sealed design ensures no dirty air can sneak through gaps, guaranteeing you get the full protection you're paying for. It saves space, simplifies your maintenance, and delivers peace of mind.
Q: How often do the components need replacement?
A: HEPA lifespan: 12-18 months. Carbon lifespan: 6-12 months. Actual duration depends on air quality and usage. We recommend monitoring pressure drop and odor breakthrough.
Q: Can you customize the carbon/HEPA ratio?
A: Absolutely! We can adjust the thickness and capacity of each section based on your specific contaminant challenges and airflow requirements.
