Kunshan Xinzhenpin New Thin Film Material Technology Co LTD.
| Thickness | 0.10 – 0.50 mm |
| Oleophobicity Grade | ≥ 7 |
| Chemical Resistance | Corrosion-resistant，Acid-resistant |
| Moisture Vapor Transmission Rate | 8,000 – 18,000 g/m²·24h |
| 90° Peel Strength | ≥ 15 N/25mm |
| Material Compliance | PFAS Free |
| Delivery Time | 15 working days |
| Waterproof Rating | IP68 |
| Operating Temperature | -40°C to +150°C |
| Water Entry Pressure | ≥ 400 kPa |
| Size | Customizable |
| Payment Terms | T/T |
| Air Permeability | Gurley：3 – 30 s/100ml @ 300 ml |
| Color | White |
| Supply Ability | Monthly Output: 300,000 sqm |
| Packaging Details | Small orders by express; bulk orders by FCL sea freight. |
| Model Number | OEM/ODM |
| Certification | IATF16949/ISO |
| Place of Origin | China |
| Brand Name | OEM/ODM |
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Product Specification
| Thickness | 0.10 – 0.50 mm | Oleophobicity Grade | ≥ 7 |
| Chemical Resistance | Corrosion-resistant，Acid-resistant | Moisture Vapor Transmission Rate | 8,000 – 18,000 g/m²·24h |
| 90° Peel Strength | ≥ 15 N/25mm | Material Compliance | PFAS Free |
| Delivery Time | 15 working days | Waterproof Rating | IP68 |
| Operating Temperature | -40°C to +150°C | Water Entry Pressure | ≥ 400 kPa |
| Size | Customizable | Payment Terms | T/T |
| Air Permeability | Gurley：3 – 30 s/100ml @ 300 ml | Color | White |
| Supply Ability | Monthly Output: 300,000 sqm | Packaging Details | Small orders by express; bulk orders by FCL sea freight. |
| Model Number | OEM/ODM | Certification | IATF16949/ISO |
| Place of Origin | China | Brand Name | OEM/ODM |
| High Light | EPTFE Acoustic Vent Membrane ，Sweatproof Acoustic Vent Membrane ，VR Headset Microphone EPTFE Vent | ||
EPTFE VR Headset Microphone Sweatproof Acoustic Vent Membrane
Product Overview
This EPTFE acoustic vent membrane is purpose-built for Virtual Reality (VR) headsets, where microphones face constant exposure to sweat, heat, and condensation during physically active gaming and training sessions. The membrane forms an impenetrable barrier against perspiration droplets while allowing the microphone to capture the user's voice commands, in-game chat, and breath with full clarity. Made from medical-grade EPTFE with a skin-safe adhesive system, it meets the biocompatibility requirements for head-worn devices that contact the face for extended periods. The vent's ultra-thin profile (0.08 mm) and matte black color integrate invisibly into the headset's facial interface or visor assembly. Its high moisture vapor transmission rate actively pulls humidity away from the microphone cavity, preventing the muffling effect of internal condensation. The membrane also resists the mild acids and salts present in human sweat, ensuring no corrosion or degradation over years of active use.
Solution
VR headsets generate significant heat and humidity inside the sealed facial gasket. Intense gameplay produces sweat that drips, pools, and migrates toward any opening, including microphone ports. Once sweat bridges the microphone aperture, audio becomes muffled or completely drops out, ruining the multiplayer experience. This EPTFE vent acts as a one-way sound gate: voice passes through with minimal attenuation, but liquid sweat beads up and rolls off the hydrophobic surface. By maintaining a dry acoustic path, it eliminates user complaints and returns related to microphone failure. The vent also reduces the need for users to clean their headset microphones manually, improving hygiene for shared-use headsets in arcades, training facilities, and health care applications.
Specifications
| Parameter | Typical Value |
|---|---|
| Material | Medical-grade EPTFE |
| Thickness | 0.08 ± 0.02 mm |
| Pore Size | 0.1 – 0.3 μm |
| Water Entry Pressure | ≥ 0.15 MPa |
| Acoustic Insertion Loss (200 Hz – 6 kHz) | ≤ 1.0 dB |
| Sweat Resistance | Passes ISO 105-E04 (acid and alkaline perspiration) |
| MVTR | > 50,000 g/m²/24h |
| Biocompatibility | ISO 10993-5, ISO 10993-10 |
| Adhesive | Skin-safe, removable acrylic |
| Color | Matte black |
| Operating Temperature | -10°C to +55°C |
Application
VR headset integrated microphones, AR glasses voice command mics, mixed reality headsets for enterprise training, and fitness tracker wearable mics.
How It Works
The membrane’s sub-micron pores present an impassable barrier to saline sweat droplets, whose high surface tension prevents entry. Sound pressure waves, being air-displacement phenomena, pass through the pores with negligible energy loss. The high MVTR allows water vapor (which forms inside the sealed cavity from residual humidity) to diffuse outward before it condenses into liquid, further protecting the mic element. Because the membrane is mechanically thin and low-mass, it does not introduce resonance or coloration in the voice band.
FAQ
Q1: Can the headset be cleaned with alcohol wipes without damaging the vent?
A: Gentle wiping with 70% isopropyl alcohol is acceptable for disinfecting the exterior surface. Harsh scrubbing or soaking in solvent should be avoided as it may reduce the oleophobic properties over time.
Q2: Will the vent membrane peel off due to sweat moisture?
A: The acrylic adhesive is cross-linked and moisture-resistant, passing 85°C/85% RH aging tests. It maintains adhesion even under continuous sweating conditions for thousands of hours.
Q3: Does the vent affect 3D spatial audio capture?
A: No. The membrane introduces less than 1.0 dB of broadband attenuation, with negligible phase shift. Spatial audio cues used in VR are fully preserved.
Company Details
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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