# Air-Circle inline fan — source and model record

Intake: 2026-09-09. Product: BAUHAUS 23207127, EAN 4046293393630.

The source evidence was reviewed on 2026-09-09. Manufacturer and retailer
documents, screenshots and product images are not redistributed by the public
VentLib project.

[BAUHAUS product page](https://www.bauhaus.info/kuechenventilatoren/air-circle-zwischenrohr-ventilator/p/23207127)
was checked during intake and remains the external source of record.

## Published facts

Only the 10 cm product is modeled: DN 100; drawing connection outside diameter
98 mm; overall length 315 mm, width 180 mm, height 232 mm; mass 1.94 kg.
The white plastic indoor fan has two speeds, airflow 190–270 m³/h, power
18–30 W, voltage 230 V, reported sound 30 dB(A), protection IP44.
Ranges are not a performance curve and are not assigned to individual speeds.
No 125/150 mm model is inferred from the retailer's variant links.

## Planning approximations and remaining evidence

The measured envelope and connection outside diameter control the model.
Intermediate shell radii, axis height, taper and neck lengths, wall thickness,
mount webs, clamping rings, terminal box and impeller are illustrative details
inferred from the photo/drawing. They are not fabrication dimensions.

The source does not dimension the insertion stops. Automatic Append therefore
remains unavailable, in accordance with the VentLib connector contract.
The two visible end faces must not silently become insertion-stop datums.
Obtain measured neck/stop positions or a manufacturer assembly drawing before
enabling assembly connectors. The model remains usable for spatial planning
and Source/Instance placement.

The product is a fixed sourced SKU, not a scalable custom fan. Changing nominal
size cannot turn it into another published model. Shared Source rebuilds update
its collection instances. Source geometry is not automatically rebuilt on load.
No installation spreadsheet row or CSV snapshot was edited as part of this intake.