The Circulaire® Access range has been developed by Monmouth Scientific to make clean air and containment technology more accessible to laboratories, research facilities and educational environments.

Combining established filtration technology with practical design and straightforward operation, the range provides effective containment solutions without unnecessary complexity.

Developed with everyday laboratory activities in mind, Circulaire® Access offers a practical approach to operator protection, particularly where space, infrastructure and installation costs are important considerations.

The Circulaire® Access CA700 is a compact, non-ducted laboratory fume cupboard designed to protect operators from exposure to hazardous chemical fumes and vapours.

Using recirculating filtration technology, the cabinet captures airborne contaminants at source and passes them through application-specific filters before returning filtered air to the surrounding environment.

The CA700 features integrated airflow monitoring and a compact working area suitable for routine laboratory chemical handling.

The CA700 draws air into the cabinet through the front working aperture, creating an inward airflow that helps prevent chemical fumes and vapours from escaping into the operator’s breathing zone.

Contaminated air passes through the filtration system, where activated carbon filters remove compatible chemical vapours through adsorption. Depending on the substances being handled, HEPA filtration can also be specified for particulate removal.

No. The CA700 does not require connection to an external extraction system.

Unlike traditional ducted fume cupboards, which discharge extracted air outside the building, the CA700 uses internal filtration to remove suitable airborne contaminants before returning filtered air to the workspace.

This can reduce installation complexity and associated infrastructure costs, particularly in existing facilities where installing external ductwork may be impractical.

Appropriate general room ventilation and a suitable assessment of the chemicals being handled are still required.

The CA700 can accommodate a variety of chemical handling activities, provided the filtration system is correctly specified for the substances involved.

Different activated carbon filter media are available to target specific groups of chemical contaminants, including general organic vapours, acids, alkalis, ammonia and certain other compounds.

Filter selection depends on the chemicals being handled, their concentrations, quantities and expected usage.

Not all chemicals are suitable for recirculating filtration. Monmouth Scientific will assess the chemicals being handled and the intended application to recommend the most suitable activated carbon filter blend for the specific laboratory processes involved.

The CA700 can be equipped with activated carbon and/or HEPA filtration, depending on the intended application.

Activated carbon filters capture suitable chemical fumes and vapours, while HEPA filters provide particulate filtration where required.

A selection of specialist carbon media is available for different chemical groups, allowing the filtration system to be specified according to the substances being handled.

An optional outlet filter can also be incorporated where appropriate.

The CA700 features an integrated digital airflow monitoring system, providing operators with real-time information about airflow conditions within the cabinet.

An animated colour LCD display allows users to monitor airflow during operation, while a low-airflow alarm provides an alert if airflow falls below the required operating level.

The cabinet’s face velocity is typically set at 0.55 m/s, although this can be adjusted depending on the application.

These features help operators identify changes in airflow performance during use.

The CA700 has the following specifications:

• External dimensions (W × D × H): 700 × 600 × 1216 mm
• Working aperture (W × H): 650 × 250 mm
• Typical face velocity: 0.55 m/s
• Weight: 62 kg
• Electrical supply: 230 V

Its 700 mm width allows the cabinet to be incorporated into laboratory layouts where available bench space is limited.

Yes. The CA700 is available with an optional mobile base stand fitted with lockable castors, allowing the cabinet to be repositioned when laboratory requirements change.

A static base stand with adjustable feet is also available for installations where a fixed working position is preferred.

Any relocation should be followed by appropriate checks to confirm that the cabinet remains suitable for its intended use.

Filter replacement intervals depend on the type of filtration media installed, the chemicals being handled, their concentrations and how frequently the cabinet is used.

Activated carbon filters have a finite adsorption capacity and must be replaced before they become saturated to maintain effective contaminant removal.

Regular servicing, filter assessment and appropriate replacement schedules are essential to maintaining safe and reliable performance.

The CA700 requires routine inspection, cleaning and servicing to maintain effective operation.

Maintenance activities typically include checking airflow performance, assessing filter condition, inspecting cabinet components and ensuring that the working aperture and airflow pathways remain unobstructed.

Regular examination and testing should be carried out in accordance with relevant workplace safety requirements, including COSHH where applicable.

Monmouth Scientific provides ongoing servicing, maintenance and replacement filter support to help customers maintain their containment equipment.

The CA700 is suitable for laboratory activities involving compatible chemical fumes and vapours.

Typical applications include routine chemical handling, sample preparation, small-scale chemical processing and research activities requiring localised fume containment.

The suitability of the cabinet should always be assessed against the chemicals, quantities and procedures involved.