Frequently Asked Questions

Standard stock models: MOQ 100 pcs. OEM/custom models: MOQ 500 pcs. For first orders and samples, we offer flexible quantities — contact us to discuss.

Yes. We ship single-unit samples for evaluation, freight collect (Samples available — freight collect). The sample fee is usually credited back against your first bulk order.

Application (bathroom / kitchen / warehouse / ducted), required airflow (CFM or m³/h), voltage and frequency, target quantity, and destination port. With these five details we can quote within 24 hours.

Yes. You can combine multiple fan types and sizes in a single 20GP or 40HQ container, as long as each model meets its minimum quantity (typically 100 pcs per model).

We accept T/T (bank transfer), L/C at sight, and Western Union. Standard terms: 30% deposit, 70% before shipment. For long-term partners, we offer flexible arrangements.

Yes. All standard models are CE certified. Test reports and Declaration of Conformity are provided with every shipment. SAA certification is available for Australia-market models on request.

Our products are certified for multiple markets: CE (Europe), CCC (China), and CB (International). SAA (Australia) and ETL (North America) certifications can be arranged on request for project orders. We can advise on the correct certification for your target market.

Yes. Saudi Arabia requires SABER / SASO product certification for electrical fans. We regularly ship to Saudi Arabia and can provide the required technical files and support your SABER registration with the certificate of conformity.

For the EU you need CE marking backed by a Declaration of Conformity and LVD/EMC test reports. Our standard models are CE certified and the Declaration of Conformity is provided with every shipment.

Yes. We can provide CB scheme test reports to help you complete local certifications in many countries without retesting from scratch.

Use our free CFM calculator. The formula is CFM = (Length × Width × Height) × air changes per hour ÷ 60. A bathroom typically needs 8 air changes per hour, a kitchen 15.

Ceiling fans mount in the ceiling and duct to the outside; wall fans mount through a wall opening; window fans fit in a window frame. Full comparison with airflow-loss figures: wall vs ceiling exhaust fan. Ceiling is ideal for bathrooms, wall for kitchens and workshops, window for rooms without duct space.

An inline (mixed-flow) duct fan is generally quieter because the duct absorbs sound and the impeller is designed for lower turbulence. Axial fans move more air at low pressure but are noisier. See our inline duct fan vs axial fan guide.

Yes, we produce a dedicated silent series for bathrooms and bedrooms. We publish the measured noise rating (dB) for each model and can send test reports on request.

Yes. We support 110V/60Hz (North America), 220–240V/50Hz (Europe, Middle East, Australia), and custom voltage requirements. Just specify in your inquiry.

Sea freight from Ningbo/Shanghai to Jeddah or Dubai typically takes 20–30 days port-to-port, depending on the sailing schedule. Air freight takes 3–5 days for urgent orders. We confirm the exact schedule when you place the order.

We quote FOB Ningbo/Shanghai as standard, and can also arrange CIF, CFR or DDP to your port or door. Tell us your destination and we will recommend the most cost-effective option.

Each fan is packed in an individual carton with foam or EPS protection, then loaded on export pallets or into reinforced cartons for container shipping. We send pre-shipment packing photos before every shipment.

Standard in-stock models: 3–7 days. Standard production orders: 20–30 days. OEM/custom mold orders: 45–60 days (including tooling). We provide weekly production updates and pre-shipment photos.

2-year warranty on all products. Defective units within warranty period are replaced or refunded after video/photo confirmation. We also offer lifetime technical support and spare parts supply.

Yes. We provide full OEM services including custom branding, packaging, voltage specifications, and mold development. Minimum OEM order is 500 pcs. Contact us for a tailored quote within 24 hours.

Yes. Our fans are designed around common opening sizes and standard ceiling/wall cut-outs. Each model ships with a mounting template, screws and a wiring diagram.

Yes. Every order includes a printed installation manual and wiring diagram, and we can send PDF versions in English, Arabic or Chinese before shipment.

Most of our fans are maintenance-free with sealed ball-bearing motors. We recommend cleaning the grille and blades every 6–12 months depending on dust levels.

Yes. We keep spare parts (motors, blades, grilles) in stock and provide after-sales support for the full product lifetime. Parts can ship with your next order or separately.