Specification

FAQ

Q1: How often do I need to replace the filters?

A: Filter lifespan depends on usage frequency and smoke concentration:

Pre-Filter Cotton: Replace every 1–2 weeks (washable/disposable).

Middle HEPA Filter: Replace every 2–3 months.

Activated Carbon Filter: Replace every 3–6 months.

Q2: Does this unit come with 110V or 220V plug options?

A: Yes, we offer both 110V (US standard) and 220V (EU/UK/AU standard) versions. Please select the correct voltage and plug type matching your destination country when placing your order.

Q3: What work scenarios is the FED350 suitable for?

A: It is widely used in PCB electronics repair, manual soldering irons, small laser marking/engraving, chemical lab ventilation, pyrography, and moxibustion/beauty applications.

Q4: Is the flexible duct pipe easily replaceable?

A: Yes, the modular bamboo pipe can be shortened, extended, or replaced easily without requiring additional tools.

Q5: What warranty and sales support do you offer?

A: We offer a 1-Year Warranty on the main machine unit (excluding consumable filters). If you encounter any technical issues or received damaged parts, contact our customer service team with photos or videos, and we will dispatch free replacement parts or provide a full solution within 24 hours.

Q6: Does the KNOKOO FED350 have international safety certifications?

A: Yes, our fume extractors are CE, FCC, and RoHS certified, meeting strict European and American safety, health, and environmental standards. ESD-safe design ensures full protection for sensitive electronic components during repair work.

Q7: Do you support OEM/ODM customization or corporate bulk orders?

A: Yes, we support custom logos, specialized packaging, custom pipe lengths, and bulk purchasing. For commercial orders, custom voltage requirements, or agent inquiries, please message our customer support directly to receive wholesale pricing and technical specifications.

Q8: How do I know when to replace the filters?

A: You should check or replace the filters when you notice:

A significant drop in suction power even at high speeds.

Smoke or odor escaping through the air outlet.

Visible thick discoloration/dirt accumulation on the outer Pre-Filter layer.

Q9: What is included in the standard package?

A: The standard package includes:

1 × FED350 Fume Extractor Unit

2 × Flexible Bamboo Extraction Pipe (with direction nozzle)

1 × Complete Set of Filters (Pre-Filter, HEPA, Carbon，High-efficiency filter)

1 × Remote control

1 × Power Cable (US/EU/UK/AU plug optional)

1 × User Manual