Air Handling & Filtration
FG-AIR-WDB
Weighing & Dispensing Booth
A negative-pressure downflow booth providing an ISO 5 / Grade A work zone for dust-controlled weighing, sampling and dispensing.
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Overview
The Fenggu Weighing & Dispensing Booth combines vertical unidirectional downflow with controlled negative pressure to contain airborne powders during weighing, sampling and dispensing. Air passes through staged filtration before entering the work zone; approximately 90% is recirculated and 10% is exhausted after HEPA filtration. This airflow strategy protects operators and the surrounding environment while maintaining an ISO 5 / Grade A critical work area.
Key Features
- Negative-pressure containment for powders and reagents
- Vertical unidirectional downflow across the critical work zone
- ISO 5 / Grade A working environment
- Prefilter, medium filter and HEPA final-filter stages
- Approximately 90% recirculation and 10% filtered exhaust
- Designed with pharmaceutical GMP cleanroom applications in mind
Technical Parameters
| Airflow pattern | Vertical unidirectional downflow | Work-zone cleanliness | ISO 5 / Grade A |
|---|---|---|---|
| Pressure regime | Negative relative to surrounding room | Air balance | Approx. 90% recirculation / 10% exhaust |
| Filtration stages | Prefilter + medium filter + HEPA | Construction | Stainless steel, project-configured |
| Configuration | Sized to process and equipment | Compliance basis | Pharmaceutical GMP cleanroom design |
Booth dimensions, exhaust volume, containment target and filter arrangement are engineered to the powder properties, room pressure cascade and operating process.
Applications
Powder Weighing
Raw Material Dispensing
Sampling Operations
Reagent Preparation
Dust-Controlled Charging
Request a datasheet or quotation
Tell us the material characteristics, batch size, containment target and room conditions for a project-specific booth configuration.
Contact Our TeamFrequently Asked Questions
What is a weighing and dispensing booth for?
It combines vertical unidirectional downflow with controlled negative pressure to contain airborne powders during weighing, sampling and dispensing, protecting both product and operator.
How does its airflow work?
Air passes through staged filtration before entering the work zone; approximately 90% is recirculated and 10% exhausted, maintaining a negative pressure relative to the surrounding room.
What cleanliness and filtration does it provide?
An ISO 5 / Grade A work zone, with prefilter + medium filter + HEPA staged filtration, in stainless-steel construction configured to the process.
What standard is it designed to?
Pharmaceutical GMP cleanroom design; booth dimensions are sized to your process and equipment.