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YINJA is a firefighting equipment brand under Shanghai Yinjia Industrial Co., Ltd. Founded on September 30, 2014, and headquartered in Songjiang District, Shanghai, the company is a professional enterprise integrating the R&D, production, and sales of firefighting equipment. Since its inception, the brand has taken “improving quality through technology” as its core philosophy for product R&D, cooperating with internationally renowned in-car fire extinguisher companies and combining the latest international technologies with the demand characteristics of domestic consumers. YINJA’s product line covers multiple categories, including water-based fire extinguishers, dry powder fire extinguishers, gas masks, and in-car emergency kits, and is committed to providing consumers with the most comfortable, scientific, and high-quality firefighting product solutions.
This project was to create a product industrial design and brand visual system for the YINJA 21B Simplified Water-Based Fire Extinguisher. Its core objective was to help the brand establish a consumer-grade, humanized, and highly recognizable product image within the traditional firefighting product market landscape characterized by “heavy industry and homogenization.” Starting from the insight that “a fire extinguisher should not merely be an industrial product, but a safety companion integrated into daily life,” we established three major design directions: “lightweight, humanized, and aesthetic.”
Lightweight design: The product weight was controlled at only 1.2 kg, as light as a cup of milk tea. This design broke through the cumbersome usage threshold of traditional fire extinguishers, allowing even women to operate it steadily with one hand and greatly reducing consumers’ fear of use.
Humanized details: A rounded canister body and anti-slip silicone grip provide a solid and comfortable grip; the nozzle can be rotated and adjusted to precisely cover narrow gaps, corners, and battery pack crevices; a snap-on bracket is provided so it does not shake even on bumpy roads; the nozzle features dual confirmation with a safety pin and a pressure gauge, so a glance at the green zone before getting in the car confirms its safety status.
Aesthetic expression: The product’s exterior design is refined, with rounded and smooth canister lines breaking the industrial feel of traditional fire extinguishers; the bottle body is printed with a clear 3C mark, and an anti-counterfeiting code at the bottom allows authenticity verification. Its compact size takes up virtually no space and can be easily placed in seat gaps, door panel storage slots, or even beside air vents.
Through this product design system combining lightweight design, humanization, and aesthetics, the YINJA 21B Simplified Water-Based Fire Extinguisher has successfully upgraded from a traditional industrial product to a benchmark firefighting product with strong recognition, high user experience, and consumer-grade brand awareness, allowing a sense of safety to integrate into consumers’ lives in a lighter and more everyday way.











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