Airs AIH & AWIH Customized Filtered Fume Hood
| Brand | Airs |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | AIH & AWIH |
| Cabinet Material | Polypropylene (PP) |
| Ventilation Type | Ductless (Recirculating) |
| Control System | Airs–Touch Intelligent Touchscreen Interface |
| Real-time Monitoring | Fan Status, Filter Saturation, Face Velocity, Ambient Temperature & Humidity |
| Primary Use | Benchtop Chemical Handling, Instrument Enclosure, and Pre-analytical Lab Protection |
| Compliance Framework | Designed per EN 14175-3 (2022), ISO 10966:2018, and aligned with ANSI/ASHRAE 110–2016 testing methodology for ductless fume hood performance validation |
Overview
The Airs AIH & AWIH series represents a purpose-engineered line of ductless, recirculating fume hoods designed specifically for low-to-moderate volatility chemical handling, instrument enclosure, and routine benchtop laboratory operations. Unlike conventional ducted hoods requiring building exhaust infrastructure, the AIH & AWIH models integrate high-efficiency multi-stage filtration—comprising pre-filters, activated carbon beds, and optional HEPA or molecular sieve layers—within a fully sealed polypropylene (PP) cabinet architecture. Operation relies on an internal centrifugal blower system that draws ambient air through the work surface, passes it sequentially through engineered filter modules, and returns purified air back into the laboratory environment. This closed-loop airflow design eliminates structural retrofitting, reduces HVAC load, and supports deployment in modular labs, mobile laboratories, and space-constrained facilities—including cleanrooms and GLP-compliant analytical prep areas. The hood’s aerodynamic profile and laminar face velocity distribution (typically 0.4–0.5 m/s at 150 mm sash height) are validated per ISO 10966:2018 protocols to ensure consistent containment efficiency across operational sash positions.
Key Features
- Polypropylene (PP) monolithic construction—chemically resistant to acids, bases, alcohols, and halogenated solvents; seamless welded joints prevent leakage and simplify decontamination.
- Ductless recirculation architecture with real-time face velocity monitoring (±0.02 m/s resolution) and automatic fan speed modulation to maintain setpoint under variable filter loading conditions.
- Airs–Touch intelligent control panel featuring capacitive touchscreen interface, multilingual UI (English, German, French, Spanish), and embedded data logging for fan runtime, filter saturation status, and environmental parameters (T/RH).
- Modular filter configuration: Standard AIH units support 1–4 parallel filter columns; AWIH variants accommodate hybrid adsorption media (e.g., impregnated carbon + potassium permanganate) for targeted VOC and acid gas removal.
- Integrated safety interlocks: Sash position sensor triggers audible/visual alerts if opened beyond safe operating height; filter life algorithm calculates remaining service time based on cumulative airflow and contaminant exposure profiles.
- UL 61010-1 and IEC 61326-1 certified electrical architecture; optional Ethernet/IP or RS485 connectivity for integration into centralized lab monitoring systems (e.g., LabVantage, Thermo Fisher SampleManager).
Sample Compatibility & Compliance
The AIH & AWIH hoods are validated for use with common laboratory reagents including hydrochloric acid (≤37%), nitric acid (≤65%), acetone, methanol, ethyl acetate, and low-concentration formaldehyde solutions (<1%). They are not rated for perchloric acid, hydrogen fluoride, or unfiltered radioactive aerosols. Each unit undergoes factory-assembled ASHRAE 110 tracer gas containment testing (SF₆ challenge at 0.5 ppm) and receives a certified test report. Design documentation conforms to EN 14175-3:2022 requirements for performance classification (Class 1, Type B). Units shipped to EU-based institutions include CE marking and Declaration of Conformity referencing Directive 2014/35/EU (LVD) and 2014/30/EU (EMC). For FDA-regulated environments, audit-ready electronic logs support 21 CFR Part 11 compliance when paired with validated Airs–Touch firmware v3.2+.
Software & Data Management
The Airs–Touch OS provides local data persistence for ≥12 months of operational telemetry (fan RPM, filter delta-P, face velocity, temperature/humidity). All logs export in CSV format via USB-C port or secure HTTPS API endpoint. Optional cloud synchronization enables remote diagnostics, predictive filter replacement scheduling, and fleet-level usage analytics. Audit trail functionality records all user-initiated actions—including parameter changes, filter resets, and alarm acknowledgments—with immutable timestamps and operator ID tagging. Firmware updates are delivered via signed OTA packages with SHA-256 verification to prevent unauthorized modification.
Applications
- Benchtop protection during pipetting, gravimetric analysis, titration, and sample dilution workflows.
- Enclosure for rotary evaporators, microwave digestion systems, moisture analyzers, and solid-phase extraction (SPE) workstations.
- Mobile lab integration: Deployed in ISO 9001-certified field vehicles for environmental sampling, food safety screening, and rapid-response chemical forensics.
- Preparatory zone shielding in pharmaceutical QC labs—particularly for HPLC mobile phase preparation and reference standard handling under ISO/IEC 17025:2017 scope.
- Education laboratories where infrastructure limitations preclude ducted exhaust; validated for undergraduate organic chemistry teaching labs per ACS Committee on Professional Training guidelines.
FAQ
What is the recommended filter replacement interval?
Filter service life depends on chemical class, concentration, and daily usage duration. Under typical academic lab conditions (4 hrs/day, mixed organics), carbon modules require replacement every 6–12 months. Airs–Touch displays real-time saturation metrics and triggers alerts at 85% depletion.
Can the hood be used with perchloric acid?
No. Perchloric acid applications require wash-down ducted hoods meeting NFPA 45 requirements. The AIH & AWIH series lacks condensate collection and stainless-steel wetted parts necessary for perchloric acid handling.
Is third-party certification available for containment validation?
Yes. Airs partners with TÜV Rheinland and SGS to perform on-site ASHRAE 110 testing and issue ISO/IEC 17025-accredited reports upon request.
Does the system support integration with LIMS or ELN platforms?
Yes. RESTful API endpoints enable bidirectional data exchange with major LIMS vendors (LabWare, STARLIMS) and electronic lab notebooks (Benchling, LabArchives) using OAuth 2.0 authentication.
What is the warranty coverage?
Standard warranty includes 24 months parts-and-labor coverage for cabinet, blower assembly, and control electronics. Filter media and consumables are excluded per industry practice.
