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Kunshan Xinzhenpin New Thin Film Material Technology Co LTD.

  • China ,Jiangsu
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China Dustproof Acoustic EPTFE Vent Membrane For Tablet Computer Mic
China Dustproof Acoustic EPTFE Vent Membrane For Tablet Computer Mic

  1. China Dustproof Acoustic EPTFE Vent Membrane For Tablet Computer Mic
  2. China Dustproof Acoustic EPTFE Vent Membrane For Tablet Computer Mic

Dustproof Acoustic EPTFE Vent Membrane For Tablet Computer Mic

  1. MOQ: 20,000 pcs
  2. Price: Negotiable
  3. Get Latest Price
Air Permeability Gurley:3 – 30 s/100ml @ 300 ml
Packaging Details Small orders by express; bulk orders by FCL sea freight.
Supply Ability Monthly Output: 300,000 sqm
Delivery Time 15 working days
Operating Temperature -40°C to +150°C
Moisture Vapor Transmission Rate 8,000 – 18,000 g/m²·24h
Water Entry Pressure ≥ 400 kPa
Payment Terms T/T
Oleophobicity Grade ≥ 7
Size Customizable
90° Peel Strength ≥ 15 N/25mm
Chemical Resistance Corrosion-resistant,Acid-resistant
Material Compliance PFAS Free
Color White
Thickness 0.10 – 0.50 mm
Waterproof Rating IP68
Brand Name OEM/ODM
Certification IATF16949/ISO
Model Number OEM/ODM
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Air Permeability Gurley:3 – 30 s/100ml @ 300 ml Packaging Details Small orders by express; bulk orders by FCL sea freight.
Supply Ability Monthly Output: 300,000 sqm Delivery Time 15 working days
Operating Temperature -40°C to +150°C Moisture Vapor Transmission Rate 8,000 – 18,000 g/m²·24h
Water Entry Pressure ≥ 400 kPa Payment Terms T/T
Oleophobicity Grade ≥ 7 Size Customizable
90° Peel Strength ≥ 15 N/25mm Chemical Resistance Corrosion-resistant,Acid-resistant
Material Compliance PFAS Free Color White
Thickness 0.10 – 0.50 mm Waterproof Rating IP68
Brand Name OEM/ODM Certification IATF16949/ISO
Model Number OEM/ODM Place of Origin China
High Light Dustproof Acoustic Vent MembraneTablet Computer Mic EPTFE VentTablet Microphone Protection Vent

EPTFE Dustproof Acoustic Vent Membrane For Tablet Computer Mic

Product Overview

Dedicated to tablet computers, this EPTFE dustproof acoustic vent membrane focuses on defending against fine particulate ingress that is prevalent in tablet usage scenarios—classrooms, kitchens, construction sites, and healthcare facilities. Tablets are often used without protective cases, leaving microphone holes exposed to flour, sawdust, pollen, and textile fibers. The membrane’s pore structure is optimized for ultra-high dust filtration efficiency (≥99.9% for particles ≥1 μm) while maintaining extreme acoustic transparency. With a thickness of only 0.12 mm, it integrates effortlessly into the slim bezels of modern tablets and 2-in-1 detachable designs. The membrane is treated with an anti-static coating that repels lint and does not attract charged dust particles, keeping the exterior visibly cleaner. It provides consistent performance across the multiple microphones used for noise suppression and video conferencing, ensuring that tablet users are clearly heard in Zoom calls, voice dictation, and AI assistant interactions.

Solution

Tablet microphones are frequently blocked by dust and debris because the devices are laid flat on surfaces, slid into bags, and handled by multiple users. Traditional foam covers act as dust magnets and eventually become clogged, causing a slow decline in voice quality that users may not notice until calls become unintelligible. Our EPTFE vent acts as a permanent, non-degrading filter that traps dust on its outer surface where it can be easily wiped away. The hydrophobic nature also prevents moisture from causing dust to cake and form a paste that blocks pores. Because tablet microphone arrays rely on precise phase and amplitude matching for beamforming, the vent is manufactured to deliver identical acoustic impedance across all units. This guarantees that the tablet’s voice isolation and noise reduction algorithms work flawlessly throughout the device’s life. The membrane also withstands screen cleaning solutions and alcohol-based disinfectants commonly used in medical and educational tablets.

Specifications
Parameter Typical Value
Material EPTFE with anti-static coating
Thickness 0.12 ± 0.02 mm
Pore Size (mean) 0.1 – 0.4 μm
Dust Filtration Efficiency (1 μm particles) ≥ 99.9%
Air Permeability (Gurley) 18 – 28 sec/100ml
Acoustic Insertion Loss (100 Hz – 10 kHz) ≤ 1.3 dB
Water Contact Angle 125°
Static Decay Time < 0.5 sec (anti-static)
Operating Temperature -20°C to +85°C
Adhesive Low-outgassing acrylic for confined spaces
Application

Tablet computer microphone arrays (2-4 mics), detachable keyboard mics, point-of-sale tablet mics, and medical cart tablets that require frequent disinfection.

How It Works

The membrane functions as a depth filter with a tortuous pore path. Dust particles larger than 0.4 μm are captured on the surface or within the first few microns of the structure; sound waves, being oscillating air currents, pass through unimpeded. The anti-static treatment prevents triboelectric charging that would otherwise attract additional dust from the air. The high water contact angle means that any liquid sprayed during cleaning beads up and does not draw dust into the pores. Over time, superficial dust can be wiped off with a dry or slightly damp cloth, restoring like-new performance.

FAQ

Q1: Can I use a vacuum cleaner or compressed air to clean the membrane?

A: Gentle compressed air (less than 2 bar) from a distance is safe. High vacuum suction directly on the port may deform the membrane—avoid direct contact.

Q2: Does the anti-static coating wear off?

A: The anti-static agent is incorporated into the polymer matrix and is not a surface coating. Its effectiveness is maintained over the product’s life, verified by 2000+ wipe cycles in testing.

Q3: Will the vent affect voice recognition in noisy school or hospital environments?

A: No, the insertion loss is flat across the voice spectrum, so far-field pickup and noise cancellation performance remain identical to an unprotected mic. The vent only removes the dust variable.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Exporter

  • Year Established:

    2018

  • Total Annual:

    1,000,000-2,000,000

  • Employee Number:

    30~50

  • Ecer Certification:

    Verified Supplier

Kunshan Xinzhenpin New Thin Film Material Technology Co., Ltd. Established in 2018, Kunshan Xinzhenpin is a specialized manufacturer dedicated to ePTFE waterproof and breathable membrane solutions. We operate a fully integrated production chain covering ePTFE raw membrane manufacturing, composite a... Kunshan Xinzhenpin New Thin Film Material Technology Co., Ltd. Established in 2018, Kunshan Xinzhenpin is a specialized manufacturer dedicated to ePTFE waterproof and breathable membrane solutions. We operate a fully integrated production chain covering ePTFE raw membrane manufacturing, composite a...

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Get in touch with us

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  • Kunshan Xinzhenpin New Thin Film Material Technology Co LTD.
  • 2nd Floor, Building 9, No. 297 Shansong Road, Yushan Town, Kunshan, Jiangsu, China
  • https://www.eptfevents.com/

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