Erlab Captair Store 531 Benchtop Air-Cleaning Chemical Storage Cabinet

Overview

The Erlab Captair Store 531 is a benchtop, recirculating air-cleaning chemical storage cabinet engineered for safe, localized containment of volatile hazardous substances in laboratory environments. Unlike conventional ventilated cabinets that exhaust to the outside, the Captair Store 531 employs a closed-loop filtration system based on dual-stage activated carbon adsorption—complemented by optional acid gas or aldehyde-specific impregnated media—to continuously purify internal air and maintain low ambient concentrations of organic vapors, acids, and solvents. Designed for integration onto standard laboratory work surfaces, it eliminates ductwork requirements and supports immediate deployment without facility modification. Its operational principle relies on controlled laminar airflow, passive vapor capture at source, and real-time air quality monitoring via integrated sensor feedback (optional configuration), ensuring consistent compliance with OSHA permissible exposure limits (PELs) and ACGIH Threshold Limit Values (TLVs®) for stored chemicals.

Key Features

• Benchtop footprint (531 mm W × 480 mm D × 690 mm H) optimized for space-constrained labs and modular workstations
• Dual-stage filtration architecture: pre-filter (G3 class) + high-capacity granular activated carbon bed (≥1.8 kg), rated for ≥90% removal efficiency across C₆–C₁₂ hydrocarbons, ketones, esters, and halogenated solvents at typical lab storage concentrations
• Adjustable internal configuration: removable mid-height shelf enables flexible vertical zoning—supporting either dual-tier storage (max. 10 cm height per tier, e.g., 72 × 20 mL vials) or single-tier high-clearance mode (max. 20 cm height, e.g., 10 × 500 mL bottles)
• Integrated airflow monitoring with visual status indicator (green/yellow/red LED) reflecting filter saturation level and fan performance
• UL/CSA-certified brushless DC centrifugal blower providing stable 120 m³/h recirculation rate with acoustic noise ≤48 dB(A) at 1 m
• Electrostatically powder-coated steel housing with chemical-resistant epoxy finish; self-closing, 180° opening door with magnetic latch and transparent polycarbonate viewing window

Sample Compatibility & Compliance

The Captair Store 531 is validated for storage of non-pyrophoric, non-peroxide-forming liquid reagents including but not limited to acetone, ethanol, methanol, toluene, chloroform, ethyl acetate, and dilute aqueous acid/base solutions (e.g., ≤10% HCl, ≤10% NaOH). It is not intended for flammable liquids classified as Class I, Division 1 under NEC Article 500, nor for radioactive, biological, or highly reactive compounds (e.g., alkali metals, white phosphorus). The unit conforms to EN 14175-7:2022 (fume cupboard performance standards for recirculating units), meets CE marking requirements under the EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU, and supports laboratory adherence to ISO/IEC 17025:2017 clause 5.3.2 regarding environmental condition control for chemical stability.

Software & Data Management

While the base Captair Store 531 operates as a standalone, maintenance-free unit without embedded software, optional configurations include the Captair Connect module—a Bluetooth-enabled sensor node that logs cumulative operating hours, fan runtime, and estimated remaining filter service life. Data export is supported via CSV through the Erlab SmartLink mobile application (iOS/Android), enabling periodic review against institutional preventive maintenance schedules. For GLP/GMP-regulated facilities, audit trails can be manually documented using the provided logbook template aligned with FDA 21 CFR Part 11 principles (electronic record retention, operator identification, time-stamped entries), though full electronic signature functionality requires integration with third-party LIMS platforms.

Applications

• Short-term staging of analytical standards and calibration solutions prior to HPLC, GC, or ICP-MS analysis
• Secure daytime storage of frequently used solvents in QC/QA laboratories where fume hood access is limited
• Containment of odoriferous or sensitizing compounds (e.g., mercaptans, isocyanates) in synthetic chemistry teaching labs
• Reduction of cross-contamination risk between incompatible reagent classes in shared instrumentation suites
• Supplemental vapor control in biosafety cabinets or gloveboxes handling volatile adjuvants or extraction solvents

FAQ

Does the Captair Store 531 require external ducting or building exhaust connection?
No—it operates as a fully recirculating system and does not require ductwork, making it suitable for leased spaces or historic buildings with ventilation restrictions.
How often must the carbon filter be replaced?
Under typical academic lab usage (8 hrs/day, moderate solvent volatility), replacement is recommended every 6–12 months; actual interval depends on total VOC mass loading and is indicated by the status LED and airflow drop (>15% reduction from baseline).
Can this cabinet be used for storing flammable liquids?
It is not certified as a flammable storage cabinet per NFPA 30 or FM Global standards; users must consult local fire codes and consider dedicated UL-listed flammable safety cabinets for Class I liquids.
Is the unit compatible with corrosive inorganic acids such as nitric or sulfuric acid?
Only diluted aqueous solutions (≤10% concentration) are supported; concentrated mineral acids require corrosion-resistant wet scrubber systems and are outside the design scope of this model.
What documentation is provided for regulatory audits?
Each unit ships with EU Declaration of Conformity, test reports per EN 14175-7, filter performance datasheets, and a traceable serial-numbered maintenance log template compliant with ISO/IEC 17025 documentation requirements.