Laminar Flow and Containment Equipment

Downflow Containment Booth

A general-purpose open-front containment booth that uses filtered vertical airflow and low-level returns to control airborne powder during manual handling.

Uniform Vertical Downflow
Open-Front Work Access
Low-Level Capture
Recirculating or Once-Through Air

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Product Introduction

The downflow booth is the base platform for weighing, dispensing, sampling and other manual powder operations. Filtered supply air descends from a full ceiling plenum, entrains released particles and moves them to rear low-level returns. Recirculating layouts suit many dry powder tasks, while once-through arrangements can be selected where vapor or solvent considerations require exhausted air. The work area, airflow rate and filter-change method are configured from the process risk assessment.

Key Features

A full-width ceiling diffuser creates a low-turbulence working zone.

Low return grilles remove powder below the operator's breathing area.

Open-front access accommodates drums, benches and mobile process equipment.

Recirculating and once-through air paths support different process media.

Modular filter stages permit standard or contained maintenance arrangements.

Customer Product Concerns

A versatile booth must maintain controlled airflow across different equipment layouts without being presented as one universal containment grade.

Powder tasks change between drums, benches and mobile equipment.The open work zone accepts interchangeable process furniture and handling aids.

Recirculating air is unsuitable for some vapor-producing operations.A once-through exhaust configuration can be selected for the applicable process.

Equipment blocks the rear capture path.Pallet stops and layout markings preserve clearance in front of the low returns.

A fixed containment claim does not match every powder.Airflow, filters and change method are configured to the actual material and handling task.

Typical Applications

Powder weighingRaw-material samplingIngredient dispensingContainer subdivision

Technical Parameters

Typical configurable construction ranges for an open-front downflow containment booth are listed below.

Core Material	Mineral-wool insulated coated-steel panels with SUS304 work-zone liners and staged filtration plenums
Panel Thickness	50-100 mm insulated wall and ceiling panels
Effective Width	1500-6000 mm clear work-zone width
Maximum Length	Up to 8000 mm booth depth
Steel Facing Thickness	0.8-1.2 mm coated steel; 1.0-1.5 mm stainless work-zone facing
Core Density	80-120 kg/m³ mineral-wool core
Thermal Conductivity	0.035-0.045 W/(m·K) for the mineral-wool core
Surface Finish	White powder-coated exterior with brushed stainless lower work-zone surfaces
Joint Type	Flush sealed panels with gasketed supply modules and welded low-level return plenums
Customization	Available based on the intended application and operating environment.

Available Options

Recirculating or once-through configurationSafe-change filter housingsMobile workbenchesCooling coil and environmental controls

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