Frequently Asked
Questions
The safe storage of flammable liquids, hazardous substances and gas cylinders often raises questions in everyday work. In our FAQ we answer the most important points regarding safety cabinets, legal requirements and technical solutions. These include, among others, topics such as exhaust connection, air exchange rates, fire resistance, explosion protection or the correct use of recirculating filter systems.
The following questions and answers give you a quick overview of relevant standards, practical requirements in the laboratory and in operations as well as typical use cases for DÜPERTHAL safety cabinets.
Safety cabinets for flammable liquids must be equipped with supply and exhaust air connections in accordance with DIN EN 14470-1. A mandatory connection to a mechanical exhaust system is not legally required in every case – however, it is strongly recommended in operational practice. ATEX-compliant recirculating air filter systems are recognized as an accepted alternative. Safety cabinets without any ventilation must be earthed according to TRGS 510 and are subject to additional requirements. DÜPERTHAL offers regulation-compliant ventilation solutions for all scenarios and advises operators in selecting the appropriate system.
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