Other
Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof: > Filtering or purifying machinery and apparatus for gases: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Subheadings
Products classified under HTS 8421.39.01
Allergen-Reducing Bedroom Air Cleaner
A quiet, low-energy air cleaner with multi-stage filtration (pre-filter, HEPA, activated carbon) for bedrooms to trap pet dander and mold spores. Under HTS 8421.39.01 as other residential gas filtering machinery. Designed for continuous operation with smart sensors.
Laser Printer Toner Fume Precipitator
A desktop electrostatic unit that captures ultrafine toner particles emitted during high-volume laser printing in offices. Under HTS 8421.39.01 as other filtering apparatus for office workspace gases. Integrates with printer exhaust ports.
3D Printer Resin Vapor Extractor
Enclosed carbon bed extractor for capturing toxic resin vapors from SLA/DLP 3D printers during prototyping. Under HTS 8421.39.01 as filtering apparatus for hobbyist/maker space gases. Activated carbon specifically formulated for methacrylate monomers.
Portable Wildfire Smoke Filtration Unit
Battery-powered personal air purifier with H14 HEPA and ionizer for filtering PM2.5 wildfire smoke during evacuations. HTS 8421.39.01 for portable gas filtering in emergency consumer use. 8-hour runtime with neck-worn design.
HEPA Air Purifier Filter Unit
A high-efficiency particulate air (HEPA) filter unit designed for residential and commercial air purification systems to remove dust, pollen, and microbes from indoor air. It falls under HTS 8421.39.01 as filtering machinery for gases, specifically for purifying ambient air in HVAC systems. This classification covers benchtop or wall-mounted units used in non-industrial settings.
Activated Carbon Gas Adsorber
A canister filled with activated carbon media for adsorbing volatile organic compounds (VOCs) and odors from air streams in ventilation systems. Classified under HTS 8421.39.01 as other filtering or purifying apparatus for gases, suitable for laboratory fume hoods or garage exhausts. It operates via adsorption without mechanical separation.
Nebulizer Compressor Air Intake Filter
High-purity pleated filter for medical nebulizer compressors ensuring clean air for aerosol medication delivery. HTS 8421.39.01 covers this as other gas filtering for medical device support. Bacterial retention >99.999% at 0.3μm.
Portable Dust Collector for Workshops
A compact cyclone and baghouse dust collector for capturing fine wood or metal particles from shop air during sanding or grinding. It qualifies under HTS 8421.39.01 as other gas filtering machinery for non-industrial workshop environments. The unit includes a blower and disposable bags for easy maintenance.
Odor Neutralizing Air Scrubber
A wall-mounted air scrubber using photocatalytic oxidation to neutralize cooking fumes, pet odors, and smoke in homes or offices. Falls under HTS 8421.39.01 for other gas purifying apparatus, focusing on chemical neutralization rather than mechanical filtering. It recirculates room air without ducting.
Fume Extractor for Soldering Stations
A benchtop fume extractor with flexible arm and carbon pre-filter for capturing lead-free solder vapors in electronics assembly. Classified in HTS 8421.39.01 as other filtering apparatus for workshop gases. It protects workers from hazardous flux fumes.
Volatile Organic Compound (VOC) Monitor Filter
A wall-insert VOC adsorber panel using zeolite media to capture paint fumes and solvents in newly constructed buildings. HTS 8421.39.01 covers this as other purifying apparatus for indoor gases during off-gassing periods. Panels are replaceable every 3-6 months.
Commercial Kitchen Grease Vapor Separator
A duct-mounted electrostatic precipitator that ionizes and collects grease particles from restaurant exhaust hoods before duct release. Classified under HTS 8421.39.01 for other gas filtering in commercial food service. Reduces fire risk and complies with NFPA 96.
Pet Hair and Dander Cyclone Separator
A floor-standing cyclone unit for pet owners that separates heavy pet hair via centrifugal force before HEPA filtration of fine dander. HTS 8421.39.01 includes this consumer gas filtering apparatus for allergy relief. Features transparent collection bin for visual emptying.
Mold Spore Air Sterilization Unit
A UV-C and PCO (photocatalytic oxidation) unit that destroys mold spores and bacteria circulating in HVAC return air. Classified HTS 8421.39.01 for gas purifying via germicidal irradiation. Used in humid climates or post-flood restoration.
Vinyl Chloride Monomer Scrubber Cartridge
Replaceable scrubber cartridge with impregnated carbon for small-scale PVC pilot plant off-gas treatment. Classified HTS 8421.39.01 as other purifying apparatus for chemical process gases. Targets VCM and HCl vapors.