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How to Source Freemax Rexa 4: Airflow Tuning
Published 2026 · VapeWholesaleHub trade desk

Airflow tuning is the single adjustment that changes how Rexa 4 feels in daily use.
Across the trade, airflow tuning is the point where good intentions meet operational reality on the Rexa 4.
Consistency across batches matters more than peak performance for Rexa 4, and airflow tuning is where inconsistency first appears.
Why airflow tuning matters on the Rexa 4
Restricted airflow suits mouth to lung customers moving from traditional products.
Documentation is not paperwork for its own sake; on airflow tuning it is the difference between a clean clearance and a delayed one.
Open airflow serves direct lung users who prioritise vapour volume.
Reference specification
| Item | Value |
|---|---|
| Model | Rexa 4 |
| Brand | Freemax |
| Category | Local Supply |
| Battery | 500 mAh |
| Output range | 12-60 W |
| Capacity | 4.0 ml |
| Charging | USB-C 2A |
| Coil options | 0.6 / 0.8 / 1.0 ohm |
| Carton quantity | 100 units |
An adjustable ring lets one SKU serve both preferences and simplifies inventory.
Practical notes for buyers
Freight consolidation changes the answer to airflow tuning at container scale, which is why small and large buyers reach different conclusions.
Retail staff rarely ask about airflow tuning directly, but their questions almost always lead back to it.
Checklist
- Confirm the exact configuration in writing before the deposit is paid.
- Keep certificates current and filed against the exact model name.
- Request batch photographs and a packing list prior to shipment.
- Verify that artwork matches the approved compliance template.
- Retain one sealed sample carton from every batch for reference.
- Check carton quantities against the commercial invoice line by line.
Commercial terms
Volume commitments work best when they are structured as a rolling target rather than a single fixed number.
Volume commitments work best when they are structured as a rolling target rather than a single fixed number.
| Volume tier | Indicative unit level | Lead time |
|---|---|---|
| Carton (116 units) | Tier 1 | 30-45 days |
| Pallet (1462 units) | Tier 2 | 7-12 days |
| Container (9444 units) | Tier 3 | 21-30 days |
Frequently asked questions
Can airflow be adjusted on Rexa 4?
Most current designs include a rotating ring or sliding switch; confirm the exact mechanism on the specification sheet.
Can packaging be adjusted for our market?
Artwork localisation is straightforward; structural changes need larger volumes and a longer lead time.
Is documentation provided for customs?
Commercial invoice, packing list and the relevant certificates are supplied; the importer's broker handles the declaration.
Can several models be mixed in one shipment?
Yes, mixing models and flavours within a carton or pallet is common and usually helps first time buyers test demand.
Final word
None of this is complicated, but it does need to be written down and reviewed on a schedule.
Trade enquiry
Quotations, samples and artwork files are available on request. Please state model, quantity per SKU, destination and target delivery window.
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