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Ventilation Patch Microporous Polypropylene Film

Small microporous PP film patches for device housings allowing pressure equalization and preventing condensation. Classified under HTS 3921.19.0010 as microporous cellular PP sheets.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%+35.0%41.5%
🇲🇽Mexico6.5%+10.0%16.5%
🇨🇦Canada6.5%+10.0%16.5%
🇩🇪Germany6.5%+10.0%16.5%
🇯🇵Japan6.5%+10.0%16.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3926.90.99Lower: 22.8% vs 41.5%

If assembled into complete vent assemblies

Other plastic articles of unspecified function beyond plain film.

4016.99.60Lower: 37.5% vs 41.5%

If rubber ePTFE vent membranes

Articles of vulcanized rubber including breathable membranes.

8547.90.00Lower: 39.6% vs 41.5%

If electrical insulating vents

Insulating fittings of plastics specifically for electrical apparatus.

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Import Tips & Compliance

• IP67/68 waterproof rating specs with acoustic impedance data support function

• Die-cut rolls remain film classification; pressure-sensitive adhesive doesn't change

• Volume shipments qualify better rates; avoid per-piece invoicing

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