Pump Exhaust Silencer

Silencer baffles reducing noise from roughing pumps in wafer polishing cleanrooms. Under HTS 8414.90.91.40 as parts of vacuum pumps processing semiconductor wafers. Clean exhaust design.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

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

8414.59Lower: 12.3% vs 35%

If fans/blowers silencers

Different pump type.

8421.39.01Same rate: 35%

If oil mist filters

Filtration focus.

9019Lower: 10% vs 35%

If lab equipment

If lab-scale testing.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

dB reduction and particle filter specs

Cleanroom compatibility cert