AIRTECH MAC-201 Modular Clean Air Unit

Overview

The AIRTECH MAC-201 Modular Clean Air Unit is a compact, self-contained laminar airflow generation module engineered for integration into custom cleanroom infrastructure—including laminar flow hoods, pass-through chambers, clean storage cabinets, and localized ISO Class 5–7 workspaces. Unlike standalone biosafety cabinets or full-room HVAC systems, the MAC-201 functions as a core air-handling subassembly: it delivers HEPA-filtered, low-turbulence airflow at precisely controlled velocity profiles, enabling users to architect modular clean environments without reliance on centralized ducted systems. Its operation is based on constant-volume, pressure-compensated airflow delivery—achieving uniform face velocity across the filter outlet plane through dynamic fan speed regulation and optimized plenum design. The unit employs a dual-speed brushless DC motor-driven centrifugal blower, providing selectable high/low airflow modes (200/160 m³/h) to match application-specific aerodynamic and thermal load requirements while maintaining laminar flow integrity per ISO 14644-3 Annex B guidelines.

Key Features

• Modular architecture with standardized mounting interfaces—enables horizontal or vertical installation in OEM-built enclosures or field-assembled clean benches.
• Dual-speed fan control (H/L mode) for adaptive airflow management; maintains consistent face velocity under variable static pressure conditions up to 120 Pa.
• Integrated HEPA filter (class H14 per EN 1822-1:2019) with ≥99.99% efficiency at 0.3 µm particle size; single 305 × 305 × 50 mm filter cartridge for simplified replacement and validation traceability.
• Low-noise operation (≤58 dB[A] at 1 m) achieved via acoustic damping materials, optimized impeller geometry, and vibration-isolated motor mount.
• Energy-efficient brushless DC motor with built-in thermal protection circuitry (IEC 60034-11 compliance); rated power ≤30 W ensures minimal heat gain in temperature-sensitive applications.
• Lightweight aluminum alloy housing (11 kg) with corrosion-resistant finish; service access panel allows filter change and internal inspection without disassembly.

Sample Compatibility & Compliance

The MAC-201 is not a sample-processing instrument but an environmental control subsystem designed to support contamination-sensitive workflows across pharmaceutical QC labs, microelectronics assembly, cell culture facilities, and analytical sample preparation areas. It complies with structural and performance benchmarks referenced in ISO 14644-1 (air cleanliness classes), ISO 14644-3 (test methods for cleanrooms), and NSF/ANSI 49 Annex A (for non-biosafety laminar flow applications). While not certified as a Class II biological safety cabinet, its HEPA filtration performance meets the particulate removal requirements of USP for sterile compounding buffer zones and EU GMP Annex 1 (2022) for Grade A local environments when integrated into validated enclosures. No chemical adsorption media are included by default; optional activated carbon or chemisorption filters may be installed upstream of the HEPA stage for VOC abatement—subject to separate validation per ISO 14644-8.

Software & Data Management

The MAC-201 operates as a stand-alone electromechanical unit with no embedded microcontroller, network interface, or digital data logging capability. All operational parameters—including fan speed selection and status indication—are managed manually via front-panel toggle switch. As such, it does not generate electronic records, nor does it support FDA 21 CFR Part 11-compliant audit trails or remote monitoring. This analog design aligns with GxP environments where deterministic, failure-mode-transparent operation is prioritized over connectivity—particularly in legacy cleanroom retrofits or ISO Class 5 laminar flow hoods requiring qualification under IQ/OQ protocols without software validation overhead. Maintenance logs (filter replacement dates, airflow verification results) must be retained externally in accordance with GLP/GMP documentation standards.

Applications

• Core airflow module for custom-built laminar flow workstations used in aseptic sampling, weighing, and formulation of sterile APIs.
• Primary air supply unit for pass-through transfer chambers between classified and non-classified zones (e.g., ISO 7 to ISO 5).
• Localized clean environment generator within gloveboxes or isolators where external ducting is impractical.
• Back-pressure compensation system in recirculating clean cabinets requiring stable inflow/outflow balance.
• Low-heat, low-vibration air source for optical alignment stations or precision metrology enclosures where thermal drift must be minimized.

FAQ

Does the MAC-201 include automatic airflow calibration or real-time velocity monitoring?
No. Airflow rate is fixed per selected mode (H/L); verification requires external anemometry during qualification per ISO 14644-3 Clause 6.2.
Can the MAC-201 be used in explosion-proof or hazardous location environments?
No. It lacks ATEX, IECEx, or NEC Class I/II certification; electrical components are not intrinsically safe.
Is the HEPA filter pre-certified with a test report?
Each unit ships with a manufacturer’s filter test certificate (EN 1822 scan report) indicating local efficiency and penetration values at 0.3 µm.
What is the recommended filter replacement interval?
Filter life depends on ambient particulate load; typical replacement occurs every 12–24 months under ISO Class 7 upstream conditions—validated via upstream/downstream particle counting.
Does AIRTECH provide IQ/OQ documentation templates for the MAC-201?
Yes—generic qualification protocols aligned with ISO 14644 and EU GMP Annex 1 are available upon request for integration into client validation master plans.