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Clean Air Solutions

Leading HEPA, Cartridge & Industrial Air Filter Manufacturer — Precision-tested, custom-engineered for every environment.

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16+
Years Experience
400+
Global Clients
MPPS
PAO Scanning
OEM
Custom Solutions

About Koinfilter

Established in 2006, Koinfilter is a top-tier air filter manufacturer based in China, renowned for innovation, patented designs, and consistent quality. We specialize in industrial-grade ultra-clean technology, serving commercial, residential, and industrial sectors with comprehensive air filtration solutions.

From air intake to exhaust systems, our expertise spans HVAC, cleanrooms, vacuum cleaners, dehumidifiers, and more. We handle everything from design to production, ensuring every filter performs reliably and exceeds expectations.

Dust-free manufacturing workshop
Professional engineering & technical support
On-time delivery guarantee (OTD)
Custom and OEM solutions available
Factory or cleanroom environment

Our Air Filter Products

Precision-engineered for performance, efficiency, and durability. Each filter undergoes rigorous testing to ensure reliability in real-world applications.

H13 H14 HEPA Filter

H13 H14 HEPA Filter

High-efficiency particulate air filter capturing 99.95% to 99.995% of particles down to 0.3 microns. Ideal for hospitals, labs, and cleanrooms.

  • • MPPS/PAO Scanning Tested
  • • Low air resistance
  • • Aluminum frame options
  • • Custom sizes available
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Cleanroom HEPA Filter

Cleanroom HEPA Filter

Designed for ISO Class 1–8 cleanrooms. Ensures ultra-low particle concentration for pharmaceutical, semiconductor, and biotech applications.

  • • ULPA optional (U15–U17)
  • • Sealed gasket design
  • • Lightweight modular frame
  • • Full scan certification
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HEPA Filter Box

HEPA Filter Box

Self-contained filtration unit with fan and HEPA filter. Perfect for spot purification in labs, hospitals, and industrial workstations.

  • • Integrated blower system
  • • Variable speed control
  • • Easy filter replacement
  • • CE & RoHS compliant
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Cartridge Filter

Cartridge Filter

High-dust-loading filters for industrial dust collection systems. Offers superior efficiency and long service life.

  • • Nanofiber media
  • • Pleated design for max surface area
  • • Flame retardant options
  • • OEM replacements available
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Activated Carbon Filter

Activated Carbon Filter

Removes odors, VOCs, and harmful gases. Used in HVAC, air purifiers, and industrial exhaust systems.

  • • Coconut shell carbon
  • • Impregnated options (e.g., potassium iodide)
  • • Custom thickness & density
  • • Combined HEPA + Carbon units
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V Bank Filter

V Bank Filter

High-capacity pre-filtration for HVAC and industrial systems. V-shaped design increases surface area and extends life.

  • • G4–F9 efficiency options
  • • Moisture-resistant media
  • • Galvanized or aluminum frame
  • • Easy installation
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High Temperature Filter

High Temperature Filter

Designed for ovens, dryers, and exhaust systems up to 800°C. Stainless steel construction with ceramic fiber media.

  • • Up to 800°C resistance
  • • Stainless steel frame
  • • Fire-rated materials
  • • Custom flange designs
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Custom and OEM Air Filters

Custom & OEM Filters

Tailored filtration solutions for unique applications. From concept to mass production — we bring your ideas to life.

  • • Full engineering support
  • • Prototyping & testing
  • • IP protection
  • • Global shipping
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Why Choose Koinfilter?

We go beyond manufacturing — we deliver trusted air quality solutions.

Precision Testing

Every HEPA filter undergoes MPPS/PAO scanning — the industry’s most rigorous test — ensuring maximum particle capture efficiency.

Dust-Free Workshop

Manufactured in a controlled, ISO-certified cleanroom environment to prevent contamination and ensure consistent quality.

Efficient Production

Advanced automation and lean processes enable fast turnaround without compromising quality — get clean air faster.

Technical Support

Our engineers provide expert guidance from design to installation, ensuring optimal performance for your system.

On-Time Delivery

We guarantee timely shipment via sea or air to any global destination — your project stays on schedule.

Client Success Focused

With over 400 satisfied clients worldwide, your success is our benchmark. We listen, adapt, and deliver.

2006
Founded
16+
Years Experience
400+
Clients Served
100%
Tested Filters

Frequently Asked Questions

Get in Touch

Need an expert? We’re here to help. Contact us today for a quote, technical support, or custom solution consultation.

+86 512 62886688
+86 18896738576
sales@koinfilter.com
No.22 Jianpu Road, Shengpu Subarea, Suzhou Industrial Park, Jiangsu, China
Visit Official Website

Our 4-Step Process

  1. 1
    Submit Inquiry

    Tell us your needs. Our engineer responds within hours.

  2. 2
    Receive Quotation

    Get a detailed quote within 2 business days.

  3. 3
    Confirm & Pay

    Approve details. We begin production.

  4. 4
    Ship & Deliver

    Quality check, packaging, and global shipping.

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