The 'Use in hazardous areas' category refers to equipment and products designed for safe operation in environments with potential explosive atmospheres, such as those found in oil and gas, chemical, mining, and pharmaceutical industries. These products are often certified under international standards like ATEX (Europe), IECEx (global), or NEC (North America). Leading companies in this field include Eaton (USA), Siemens (Germany), and Pepperl+Fuchs (Germany), which specialize in manufacturing explosion-proof electrical components, lighting, sensors, and control systems. These solutions ensure safety by preventing ignition sources in hazardous zones classified by the presence of flammable gases, dust, or fibers.