| HS Code | Official Doc | Tariff Rate | Origin | Destination | Effective Date |
|---|---|---|---|---|---|
| 8424899000 | Doc | 56.8% | CN | US | 2025-05-12 |
| 8424891000 | Doc | 55.0% | CN | US | 2025-05-12 |
| 8479899599 | Doc | 57.5% | CN | US | 2025-05-12 |
| 8479899599 | Doc | 57.5% | CN | US | 2025-05-12 |
| 3926901000 | Doc | 40.9% | CN | US | 2025-05-12 |
| 3926909989 | Doc | 42.8% | CN | US | 2025-05-12 |
| 3923900080 | Doc | 58.0% | CN | US | 2025-05-12 |
Blowing Dust Gun
A blowing dust gun, also known as a duster, compressed air duster, or simply air duster, is a tool used to remove dust, debris, and other particulate matter from sensitive equipment and hard-to-reach areas without physical contact.
Material & Mechanism
Traditionally, blowing dust guns utilized compressed air canisters. Modern versions increasingly employ compressed gases like difluoroethane (HFC-134a) as propellants due to environmental concerns associated with older chlorofluorocarbon (CFC) based propellants. The device consists of a handheld canister with a nozzle and a trigger mechanism. Pressing the trigger releases a focused blast of gas. Electric dust blowers, utilizing a small fan to generate airflow, are also available.
Purpose & Function
The primary purpose of a blowing dust gun is non-contact cleaning. The high-velocity gas stream dislodges particles, preventing damage that could be caused by brushes, cloths, or vacuum cleaners. It functions by utilizing the force of the expelled gas to overcome the adhesion of dust and debris.
Usage Scenarios
- Electronics: Cleaning computer components (motherboards, graphics cards, CPUs, RAM), keyboards, printers, and other electronic devices.
- Photography: Removing dust from camera sensors, lenses, and other optical equipment.
- Automotive: Cleaning interior vents, dashboards, and engine bays (with appropriate precautions).
- Industrial Maintenance: Cleaning machinery, precision instruments, and tight spaces.
- Household: Cleaning delicate collectibles, figurines, and hard-to-reach areas.
Common Types
- Compressed Air Canisters: Disposable cans containing compressed gas. These are the most common and affordable type.
- Electric Dust Blowers: Reusable devices powered by electricity. They offer consistent airflow and are environmentally friendly, though typically less powerful than canned air. Some models include variable speed settings and different nozzle attachments.
- Manual Pump Blowers: Hand-operated pumps that generate air pressure. These are a quieter, more environmentally friendly option, but require manual effort.
- Specialty Nozzles: A variety of nozzles are available for specific applications, including long, thin nozzles for reaching tight spaces, and brush attachments for loosening stubborn debris.
Based on the provided information, a blowing dust gun falls under the category of mechanical appliances for projecting, dispersing, or spraying liquids or powders. Here are the relevant HS codes:
- 8424899000: Mechanical appliances (whether or not hand operated) for projecting, dispersing or spraying liquids or powders; fire extinguishers, whether or not charged; spray guns and similar appliances; steam or sand blasting machines and similar jet projecting machines; parts thereof: Other appliances: Other. This code broadly covers mechanical appliances used for projecting or spraying, which includes dust guns. The total tax rate is 56.8% (Basic tariff: 1.8%, Additional tariff: 25.0%, Additional tariff after 2025.4.2: 30%).
- 8424891000: Mechanical appliances (whether or not hand operated) for projecting, dispersing or spraying liquids or powders; fire extinguishers, whether or not charged; spray guns and similar appliances; steam or sand blasting machines and similar jet projecting machines; parts thereof: Other appliances: Mechanical appliances for projecting, dispersing or spraying, of a kind used solely or principally for the manufacture of printed circuits or printed circuit assemblies. If the blowing dust gun is specifically used for printed circuit board manufacturing, this code applies. The total tax rate is 55.0% (Basic tariff: 0.0%, Additional tariff: 25.0%, Additional tariff after 2025.4.2: 30%).
Explanation of HS Code Structure:
- 84: Chapter 84 covers "Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof."
- 24: Heading 8424 specifically covers "Mechanical appliances for projecting, dispersing or spraying liquids or powders."
- 89: Subheading 842489 covers "Other appliances."
- 90/10: Further specifies the type of "Other appliances" (90: Other, 10: Mechanical appliances for printed circuits).
Important Note:
The applicable tax rate depends on the specific use of the blowing dust gun. If it's a general-purpose dust gun, 8424899000 applies. If it's specifically designed for printed circuit board manufacturing, 8424891000 applies.