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Air Bar Box 4 Airflow Tuning Checklist 2026
Published 2026 · VapeWholesaleHub trade desk
Airflow tuning is the single adjustment that changes how Box 4 feels in daily use.
Between the factory gate and the retail shelf, airflow tuning is where most of the value on the Box 4 is either created or lost.
The most common mistake is optimising for the first order instead of the fourth, which is where Box 4 economics actually settle.
Why airflow tuning matters on the Box 4
Restricted airflow suits mouth to lung customers moving from traditional products.
Where two suppliers look identical on price, airflow tuning is usually the variable that separates them over a full year.
Open airflow serves direct lung users who prioritise vapour volume.
Reference specification
| Item | Value |
|---|---|
| Model | Box 4 |
| Brand | Air Bar |
| Category | Local Supply |
| Battery | 1500 mAh |
| Output range | 5-25 W |
| Capacity | 1.0 ml |
| Charging | USB-C fast charge |
| Coil options | 0.6 / 0.8 / 1.0 ohm |
| Carton quantity | 50 units |
An adjustable ring lets one SKU serve both preferences and simplifies inventory.
Practical notes for buyers
Keeping a short internal note on airflow tuning for each SKU pays for itself the first time a dispute arises over the Box 4.
Where two suppliers look identical on price, airflow tuning is usually the variable that separates them over a full year.
Checklist
- Confirm the exact configuration in writing before the deposit is paid.
- Check carton quantities against the commercial invoice line by line.
- Keep certificates current and filed against the exact model name.
- Verify that artwork matches the approved compliance template.
- Retain one sealed sample carton from every batch for reference.
- Request batch photographs and a packing list prior to shipment.
Commercial terms
Freight terms should be named explicitly, because an unclear incoterm is the fastest way to lose a relationship.
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 (65 units) | Tier 1 | 7-12 days |
| Pallet (1887 units) | Tier 2 | 7-12 days |
| Container (16073 units) | Tier 3 | 7-12 days |
Frequently asked questions
Can airflow be adjusted on Box 4?
Most current designs include a rotating ring or sliding switch; confirm the exact mechanism on the specification sheet.
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.
What happens if a batch fails inspection?
The agreed procedure normally covers replacement of affected units or credit against the next order, documented before shipment.
Do you support long term supply agreements?
Yes, rolling agreements with defined review points work better for both sides than rigid annual commitments.
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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