Cleanroom Laminar Flow Filter Module
HEPA filter ceiling modules providing laminar airflow in ISO cleanrooms for contamination control. Falls under HTS 8421.39.0190 as other gas filtering for controlled environments.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If non-cleanroom industrial laminar modules
General industrial versions under other clean air provisions.
If dedicated to semiconductor wafer processing
Chapter statistical notes place semiconductor clean air systems separately.
If with recirculation fans >250 CFM
Fan-integrated units become air circulation machinery.
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
• Certify to IEST-RP-CC001 standards with DOP/PAO scan test results
• Specify frame materials (e.g
• gel-seal vs knife-edge) for gel compatibility
Related Products under HTS 8421.39.01.90
HEPA Air Purifier Filter Unit
A high-efficiency particulate air (HEPA) filter unit designed for removing airborne particles, dust, and pollutants from indoor air in residential or commercial spaces. It falls under HTS 8421.39.0190 as other filtering or purifying machinery for gases, specifically for air purification not classified elsewhere in the heading.
Activated Carbon Gas Adsorber
An industrial adsorber using activated carbon media to remove volatile organic compounds (VOCs) and odors from exhaust gases in manufacturing plants. Classified under HTS 8421.39.0190 as other gas purifying apparatus employing adsorption for air treatment.
Commercial Kitchen Grease Vapor Filter
A baffle-style filter system capturing grease particulates and vapors from cooking exhaust in restaurant hoods to prevent fire hazards and odors. It qualifies under HTS 8421.39.0190 for other gas filtering machinery in food service applications.
HVAC Electrostatic Air Cleaner
An electrostatic precipitator module for HVAC systems that charges and collects fine dust particles from recirculated building air. Falls under HTS 8421.39.0190 as other purifying apparatus for gases using electrostatic filtration.
Odor Control Biofilter Module
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.
Portable Welding Fume Extractor
A mobile filtration unit with flexible arm capturing and filtering toxic metal fumes from welding operations in workshops. It is covered by HTS 8421.39.0190 as other gas filtering apparatus for industrial safety.