https://www.powtech.de/en/ausstellerprodukte/powtec23/product-10332460/ventilation-sleeves

The Rheo Ventilation Sleeve provides localized dust and vapor control at the point of product transfer. The full perimeter slot design provides 360 degrees of extraction to ensure that proper air velocity is maintained in the dust zone despite obstructions.

Containment levels of less than 10μg/m³ have been demonstrated.

https://rheoengineering.com/products/ventilation-sleeve/

At Rheo Engineering, we apply rheological engineering to every project, helping our clients design processes and systems that get their materials from one point of the process to the next. Material handling should be considered in the early stages when designing and developing any process. At Rheo, we look at how materials flow within a process and design systems that ensure optimized process flow.

Rheo partners with clients allowing them to be involved in the entire process; from the initial concept and feasibility review to the delivery and start-up of a turnkey system.