Odor Control Biofilter Module from Mexico
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 — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include microbial media composition and VOC/H2S removal efficiency certifications
• Document moisture control systems; humidification features must not dominate function