Drummond Pipet-Aid Dual Pump Filtration Unit
| Brand | Drummond |
|---|---|
| Origin | USA |
| Model | Pipet-Aid Dual Pump Filtration Unit |
| Filtration Efficiency | ≥99.9999% |
| Particle Retention Size | 0.1 µm |
| Filter Configuration | Dual-stage integrated biohazard filtration module |
| Pre-installed | Yes (factory-integrated) |
| Compatible Accessory Part Numbers | 4-000-005 (Pipet-Aid Biohazard Filter Assembly), 4-000-060 (Biohazard Filter Cartridge, 21PT) |
Overview
The Drummond Pipet-Aid Dual Pump Filtration Unit is an engineered vacuum and pressure control system designed specifically for safe, reliable operation in biosafety-critical laboratory workflows. Unlike conventional vacuum pumps used for aspiration or filtration, this unit integrates a dual-stage, factory-installed biohazard filtration architecture that actively protects both the pump mechanism and the laboratory environment from aerosolized biological agents, volatile solvents, and fine particulates. Its core operational principle relies on sequential vacuum and pressure regulation through a sealed, chemically resistant pathway, where sample effluent passes first through a hydrophobic pre-filter and then through a certified 0.1 µm absolute-rated membrane filter—achieving ≥99.9999% retention efficiency for microorganisms, viral particles, and submicron contaminants. This configuration ensures compliance with institutional biosafety level (BSL-2 and BSL-3) containment requirements and supports GLP-aligned documentation of aspiration integrity.
Key Features
- Dual-pump architecture enabling simultaneous vacuum aspiration and positive-pressure dispensing—ideal for repetitive pipetting, cell harvesting, and multi-step filtration protocols.
- Factory-integrated biohazard filtration module compliant with ISO 14644-1 Class 5 cleanroom particulate standards for downstream air exhaust.
- Chemically resistant fluoropolymer and stainless-steel wetted path components compatible with aqueous solutions, alcohols, acetone, and diluted acids/bases.
- Modular filter design supporting field replacement without tools: standard 21PT filter cartridges (Part No. 4-000-060) and full assembly kits (Part No. 4-000-005) are available as validated consumables.
- Low-noise brushless motor drive with thermal overload protection and adjustable vacuum setpoint (typically 0–650 mbar absolute range).
- Ergonomic footswitch interface and programmable pause/resume function to reduce operator fatigue during extended use.
Sample Compatibility & Compliance
The Pipet-Aid Dual Pump Filtration Unit is routinely deployed in applications involving human-derived samples, recombinant proteins, lentiviral supernatants, and mycoplasma-contaminated cultures. Its filtration performance meets ASTM F2101-19 (Bacterial Filtration Efficiency testing using Staphylococcus aureus aerosol) and is validated per ISO 15585:2021 for microbiological safety in liquid handling equipment. The unit supports audit-ready traceability when used in conjunction with Drummond’s optional electronic usage log module (sold separately), which records runtime, filter change timestamps, and pressure deviation events—facilitating 21 CFR Part 11–compliant data integrity in regulated QC/QA environments.
Software & Data Management
While the base unit operates via analog controls, optional digital integration enables connection to LabVantage LIMS or Thermo Fisher SampleManager via RS-232 or USB virtual COM port. Firmware version 2.1+ supports SCPI command syntax for remote vacuum ramping, real-time pressure monitoring, and automated filter life estimation based on cumulative flow volume and differential pressure delta. Audit trail logs—including user ID, timestamp, and parameter adjustments—are stored locally on encrypted internal flash memory and exportable as CSV or PDF for GLP/GMP review cycles.
Applications
- Biosafety cabinet-compatible media aspiration during primary cell isolation and stem cell passaging.
- High-throughput sterile filtration of serum-free culture media and transfection reagents.
- Controlled vacuum-assisted blotting in Western and nucleic acid hybridization workflows.
- Pre-analytical sample preparation for clinical diagnostics labs operating under CLIA and CAP accreditation requirements.
- Environmental microbiology: vacuum filtration of water samples for membrane-based colony enumeration (e.g., EPA Method 1603).
FAQ
Is the biohazard filtration module supplied pre-installed on all units?
Yes. Every Drummond Pipet-Aid Dual Pump Filtration Unit ships with the dual-stage 0.1 µm filtration assembly fully integrated and functionally tested at the US manufacturing facility.
What is the recommended filter replacement interval?
Filter service life depends on total processed volume and aerosol load; under typical BSL-2 cell culture use, replacement is advised every 50–75 hours of cumulative operation or upon observed >15 kPa pressure differential across the filter cartridge.
Can the unit be validated for ISO/IEC 17025-compliant laboratories?
Yes. Drummond provides a Factory Acceptance Test (FAT) report with each unit, including vacuum stability curves, flow rate vs. backpressure data, and filtration efficiency certification—serving as foundational documentation for method validation per ISO/IEC 17025 Clause 5.4.5.
Does the system support pressure calibration traceable to NIST standards?
All pressure sensors are calibrated against NIST-traceable deadweight testers prior to shipment, with calibration certificates available upon request (Option Code: CAL-NIST).
