Shenzhen Meiri Purification Technology Co., Ltd.
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GMP Negative Pressure Weighing Booth | H14 HEPA Filtration | Dust Containment System
Engineered for precise material handling in pharmaceutical production, this weighing booth prevents cross-contamination while maintaining GMP-compliant environmental conditions. Ideal for potent compound weighing and dispensing operations.
| Parameter Name | Value |
|---|---|
| Main Enclosure Material | SUS304 stainless steel, 1.2mm thickness |
| Control Interface | 7-inch touchscreen with real-time monitoring |
| Inverter System | 1.5KW/unit (Oray brand) |
| Pressure Monitoring | 3 differential pressure gauges (local & remote) |
| Airflow Sensors | Integrated wind speed sensors with remote output |
| Electrical Outlets | 2× industrial sockets (Chint brand) |
| Fan Configuration | DSX-240 (1.5KW)×2 units with flow equalization membrane |
| Filtration System | MRJH H14 HEPA (99.995%) + G4 pre-filter + F8 intermediate filter |
| Work Surface Dimensions | 700W×500D×800H mm (weighing table) |
| Internal Dimensions | 1500W×1400D×2000H mm |
| External Dimensions | 1600W×2000D×2670H mm |
| Environmental Control | 18-26°C, 45-65% RH (GMP Grade D) |
Optional Dimensions | Work Surface (W×D×H, mm) | Internal Dimensions (W×D×H, mm) | External Dimensions (W×D×H, mm) |
|---|---|---|---|
| Model 1 | 700 × 500 × 800 | 2100 × 1000 × 2000 | 2200 × 1600 × 2670 |
| Model 2 | 700 × 500 × 800 | 2900 × 1400 × 2000 | 3000 × 2000 × 2670 |
| Model 3 | 700 × 500 × 800 | 3750 × 1400 × 2000 | 3850 × 2000 × 2670 |
| Model 4 | 700 × 500 × 800 | 4400 × 1400 × 2000 | 4500 × 2000 × 2670 |
1. Advanced Containment Technology
Negative pressure design: Maintains -15Pa to -30Pa gradient to prevent dust escape
Triple-stage filtration: Combines G4→F8→H14 filters for 99.995% particle retention
2. Precision Process Control
Dual 1.5KW fans: Ensure stable airflow (0.45±0.1m/s) during material transfers
Real-time monitoring: Touchscreen displays differential pressure, wind speed, and filter status
3. GMP-Compliant Construction
304 stainless steel: Resists disinfectants and prevents particle shedding
Seamless welds: Eliminate contamination traps per EU GMP Annex 1
4. Operational Safety
Automatic alarms: Trigger for pressure deviations or filter saturation
Emergency stop: Instantly halts operations if containment is compromised
1. Potent Compound Handling
Contains cytotoxic dust during oncology drug dispensing (USP <800> compliant)
2. API Weighing
Maintains ISO 8 conditions for active pharmaceutical ingredient measurement
3. Excipient Preparation
Prevents cross-contamination in multi-product facilities
4. Sterile Formulation
Protects sterile cores during tablet compression line feeding
5. R&D Laboratories
Enables safe handling of experimental compounds in early development
Filter Efficiency: EN 1822-5:2009 tested at MPPS (0.12-0.25μm)
Pressure Control: Validated per ISO 14644-3 Annex B4
Material Compliance: ASTM A240 304 stainless steel, Ra ≤0.5μm
FQAs
Q1: How does the negative pressure system prevent hazardous powder exposure?
The booth maintains -15Pa to -30Pa pressure gradient with dual 1.5KW fans, creating inward airflow that contains 99.9% of particles ≥5μm. This exceeds OSHA 29 CFR 1910.134 requirements for hazardous drug handling.
Q2: What makes your H14 filter more effective than standard HEPA?
Our MRJH H14 filters are MPPS-tested at 0.12μm (vs standard 0.3μm), capturing 99.995% of particles - critical for potent compounds like cytotoxics. Includes DOP test ports for routine validation.
Q3: Can the system handle continuous weighing of multiple APIs?
Yes, the 304 stainless steel interior and flow equalization membrane prevent cross-contamination during product changeovers. Touchscreen logs each session for 21 CFR Part 11 compliance.