Odor Control Biofilter Module from Germany
A biological filter using microbial beds to degrade odorous gases like H2S in wastewater treatment plants. Classified in HTS 8421.39.0190 for other gas purifying machinery employing biofiltration.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Include microbial media composition and VOC/H2S removal efficiency certifications
• Document moisture control systems; humidification features must not dominate function