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How to Source Air Bar Box 4: Airflow Tuning
Published 2026 · VapeWholesaleHub trade desk
Airflow tuning is the single adjustment that changes how Box 4 feels in daily use.
Every serious sourcing conversation about the Box 4 eventually arrives at airflow tuning, usually because it is where cost and risk meet.
Keeping a short internal note on airflow tuning for each SKU pays for itself the first time a dispute arises over the Box 4.
Why airflow tuning matters on the Box 4
Restricted airflow suits mouth to lung customers moving from traditional products.
In practice the decision comes down to three numbers: unit cost, freight per unit and the realistic sell through rate for Box 4.
Open airflow serves direct lung users who prioritise vapour volume.
Reference specification
| Item | Value |
|---|---|
| Model | Box 4 |
| Brand | Air Bar |
| Category | Box Mods |
| Battery | 650 mAh |
| Output range | 12-80 W |
| Capacity | 4.0 ml |
| Charging | USB-C 1A |
| Coil options | 0.6 / 0.8 / 1.0 ohm |
| Carton quantity | 240 units |
An adjustable ring lets one SKU serve both preferences and simplifies inventory.
Practical notes for buyers
In practice the decision comes down to three numbers: unit cost, freight per unit and the realistic sell through rate for Box 4.
Shops that receive a short briefing on airflow tuning convert noticeably better than shops that only receive stock.
Checklist
- Keep certificates current and filed against the exact model name.
- Log sell through by account for the first eight weeks.
- Review the reorder point after one full selling cycle.
- Check carton quantities against the commercial invoice line by line.
- Record the arrival condition with photographs on the day of delivery.
- Request batch photographs and a packing list prior to shipment.
Commercial terms
Lead times are a function of component availability as much as factory capacity, so buffers should reflect both.
Payment history is the single most reliable route to better terms, more than total annual volume.
| Volume tier | Indicative unit level | Lead time |
|---|---|---|
| Carton (127 units) | Tier 1 | 21-30 days |
| Pallet (1606 units) | Tier 2 | 21-30 days |
| Container (16992 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.
How quickly can a repeat order be produced?
For established configurations production typically runs two to four weeks, with transit on top depending on the chosen method.
Is documentation provided for customs?
Commercial invoice, packing list and the relevant certificates are supplied; the importer's broker handles the declaration.
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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