Find HS Code and trade information for 25mm mini air inlet filter

25mm Mini Air Inlet Filter

A 25mm mini air inlet filter is a small-sized component designed to remove contaminants from air entering a system or device. These filters are commonly used in applications requiring clean air for optimal performance and longevity of sensitive components.

Material

These filters typically utilize a variety of materials, selected based on the specific application requirements:

• Filter Media: Common materials include:
  • Polypropylene (PP): Offers good chemical resistance and general filtration.
  • Polyethylene (PE): Similar to polypropylene, often used for lower-cost applications.
  • Nylon: Provides higher strength and temperature resistance.
  • PTFE (Teflon): Excellent chemical resistance and high-temperature performance, used in harsh environments.
  • Activated Carbon: Used for odor and volatile organic compound (VOC) removal.
  • HEPA (High-Efficiency Particulate Air): For highly efficient removal of fine particles.
• Housing/Casing: Usually constructed from:
  • ABS Plastic: Lightweight and cost-effective.
  • Polycarbonate: Higher impact resistance and clarity.
  • Metal (Stainless Steel, Aluminum): For more robust applications and higher temperature resistance.

Purpose

The primary purpose of a 25mm mini air inlet filter is to protect sensitive components from damage caused by airborne particles, dust, moisture, and other contaminants. This protection can:

• Improve System Performance: Clean air ensures efficient operation of devices like pumps, compressors, and sensors.
• Extend Component Lifespan: Preventing contamination reduces wear and tear on critical parts.
• Maintain Product Quality: In applications like medical devices or analytical instruments, clean air is essential for accurate results.

Function

These filters function by physically trapping contaminants as air passes through the filter media. The filter media's pore size determines the size of particles it can remove. The efficiency of a filter is often rated in microns (µm), indicating the size of particles it can capture. Some filters also incorporate chemical adsorption properties to remove specific gases or odors.

Usage Scenarios

• Medical Devices: Air purification in respirators, ventilators, and anesthesia machines.
• Analytical Instruments: Protecting sensitive sensors in gas analyzers, mass spectrometers, and chromatography systems.
• Pumps and Compressors: Preventing damage to internal components from abrasive particles.
• 3D Printers: Filtering air intake to reduce particle contamination in printed parts.
• HVAC Systems: Pre-filtration for smaller air handling units.
• Automotive Applications: Air intake filters for small engines and fuel systems.
• Robotics: Protecting sensors and actuators in robotic systems.

Common Types

• Sintered Filters: Made from powdered metal or plastic particles fused together, offering high porosity and uniform pore size.
• Pleated Filters: Feature a folded filter media design, increasing surface area for higher dirt-holding capacity.
• Spun Bond Filters: Constructed from continuous filaments of polypropylene or polyethylene, providing good filtration efficiency and low cost.
• Activated Carbon Filters: Contain activated carbon to remove odors, VOCs, and other gaseous contaminants.
• HEPA Filters: Offer very high efficiency particulate air filtration, typically used in critical applications.
• Inline Filters: Designed for direct installation in air lines or tubing.
• Screw-in Filters: Feature threaded connections for easy installation and removal.

The declared goods are a 25mm mini air inlet filter, used for filtering air intake, likely in internal combustion engines or air purification systems. These filters are components designed to remove particulate matter from the air stream.

The following HS codes are relevant based on the provided reference material:

• 8421310000: Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof: Filtering or purifying machinery and apparatus for gases: Intake air filters for internal combustion engines.

  • 84: Chapter 84 covers nuclear reactors, boilers, machinery and mechanical appliances; parts thereof.
  • 21: Heading 8421 specifically covers centrifuges, filtering or purifying machinery and apparatus.
  • 31: Subheading 842131 further specifies filtering or purifying machinery and apparatus for gases, and specifically intake air filters for internal combustion engines.

• 8421390115: Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof: Filtering or purifying machinery and apparatus for gases: Other Dust collection and air purification equipment: Other.

  • 84: Chapter 84 covers nuclear reactors, boilers, machinery and mechanical appliances; parts thereof.
  • 21: Heading 8421 specifically covers centrifuges, filtering or purifying machinery and apparatus.
  • 39: Subheading 842139 covers other filtering or purifying machinery and apparatus for gases.
  • 01: Subheading 84213901 further specifies dust collection and air purification equipment.
  • 15: Subheading 8421390115 specifies "Other" within that category.

• 8504909690: Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof: Parts: Other: Other Other parts: Other.

  • 85: Chapter 85 covers electrical machinery and equipment.
  • 04: Heading 8504 specifically covers electrical transformers, static converters and inductors.
  • 90: Subheading 850490 covers parts.
  • 96: Subheading 85049096 covers other parts.
  • 90: Subheading 8504909690 covers other parts.

Regarding HS code 8421310000, the goods are specifically identified as intake air filters for internal combustion engines. If the filter is not for an internal combustion engine, HS code 8421390115 may be more appropriate.