A recirculating air filter cabinet is a specific type of storage cabinet that features an integrated air filtration unit. These cabinets are designed to safely store hazardous materials with a recirculating filtration system, where chemical vapours are actively drawn through the filters within the cabinet instead of being exhausted outside. 

To achieve effective filtration of hazardous vapours, these filtered chemical cabinets include a range of media such as activated carbon filters. When contaminated air passes through these filters, the vapour is adsorbed onto the carbon surface, a process in which molecules, ions, or atoms adhere to a solid surface. The cleaned air is then recirculated. 

Ventilated chemical storage cabinets are a functional addition to a wide range of environments where compliance with COSHH, HSE guidance, and EN 14470-1 is required, including laboratories, manufacturing plants, and educational and industrial settings.

• Storing several hazardous materials in one cabinet: Air recirculation helps remove hazardous vapours compatible with the installed filter media, supporting safer chemical storage.

• Complete overview: Oversight of the storage of your hazardous materials can prevent potential accidents and ensure all materials are safely locked away and can be relocated as needed.

• Multi-stage filtration: Several stages of filtration ensure a high degree of air purity, supporting compliance with UK regulations for safety in the workplace.

• Fire-resistance: Our cabinets feature a high degree of fire resistance in compliance with EN 14470-1 to contain and protect workers against potential fires.

• Automatic door closure: Doors close automatically to ensure a high level of safety and to prevent the leakage of vapours.

• Vapour retention of up to 99.998%: High vapour retention makes these cabinets an ideal solution for environments where a ducted system is not a suitable choice.

All recirculating filter cabinets are fitted with an integrated recirculating filter system that traps hazardous vapours appropriate for the filter media. With recirculating filter technology, vapours are extracted directly at the source, filtered, and then returned to the room as clean air. These filters must be maintained and monitored to ensure the continual effective removal of fumes.

In addition, our recirculating filter cabinets are equipped with useful extras to improve their functionality and enhance day-to-day workflows. These include:

Both recirculating and ducted air filter cabinets have different benefits for varying applications:

• Installation: Recirculating cabinets are simple to install, while ducted cabinets require professional installation for external extraction.

• Running costs: Non-ducted cabinets have lower energy costs but require filter replacement, while ducted systems have higher energy costs.

• Flexibility: A recirculating cabinet can be relocated or placed anywhere there is space, while ducted air filter cabinets have to be fixed in place.

• Ventilation: Ducted cabinets continuously extract contaminated air outside, while recirculating systems rely on filters, which must be chosen for the specific stored chemicals.

• Applications: Recirculating systems are well-suited for applications where external ducting is impractical, while ducted cabinets are utilised where large volumes of chemicals are stored or where a risk assessment specifies that external extraction is required.