Electrostatic Filter Cotton: Technical Overview

• Posted by wang july Wed at 8:11 PM Filed in Other #Electrostatic Filter Cotton: Technical Overview  16 views
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  1. Working Principle

  Electrostatic filter cotton utilizes electrostatic attraction to capture airborne particulate matter, significantly enhancing filtration efficiency through charged fiber media.

  2. Performance Advantages

  - Enhanced Filtration: Capable of trapping sub-micron particles (superior to mechanical filtration)

  - Energy Efficiency: Low airflow resistance (typically 30-50% lower than HEPA filters)

  - Reusability: Washable designs allow 15-20 cleaning cycles (varies by manufacturer)

  - Economic Benefit: 60-70% cost reduction compared to disposable filters over 3-year lifecycle

  3. Technical Limitations

  - Maintenance Requirements:

    - Monthly cleaning recommended for optimal performance

    - 15-20% efficiency degradation after each wash cycle

  - Environmental Sensitivity:

    - Relative humidity >70% reduces electrostatic effect by 40-60%

    - Ozone emission <0.01 ppm (meets UL867 standards)

  4. Industrial Applications

  - Commercial Air Purification:

    - MERV 11-13 equivalent (per ASHRAE 52.2)

    - Particulate capture down to 0.3μm @ 85-95% efficiency

  - Cleanroom Technology:

    - ISO Class 5-7 environments

    - Compliant with FDA 21 CFR Part 11 for pharma applications

  - Industrial Process Filtration:

    - Powder coating booths: 99% capture of 5-20μm particles

    - Laser cutting fume extraction

  5. Material Specifications

  - Base Material: Polypropylene/polyester hybrid fibers

  - Surface Charge Density: 10-15 μC/m²

  - Typical Thickness: 10-25mm

  - Operating Temperature Range: -30°C to 80°C

  6. Comparative Performance Data

  | Parameter        | Electrostatic Cotton | Mechanical Filter |

  |------------------|----------------------|-------------------|

  | Initial Efficiency | 85%@0.3μm         | 65%@0.3μm        |

  | Pressure Drop    | 25Pa @ 2.5m/s      | 45Pa @ 2.5m/s    |

  | Service Life     | 3-5 years          | 6-12 months      |

  | Energy Savings   | 30-40%             | Baseline         |

  Note: All performance data based on standard test conditions (25°C, 50% RH)

  https://www.amdfil.com/electrostatic-filter-cotton-technical-overview.html