Breakthrough Tests Show Significant PM2.5/PM10 Reduction for Low-Smoke, Sulfur-Free Fireworks
In a notable move toward greener pyrotechnics, the Fireworks and Firecrackers Industry Development Center of Liuyang, Hunan Province, recently convened six local fireworks manufacturers to conduct centralized testing of newly developed low-smoke, sulfur-free fireworks products.

Testing site overview — Liuyang low-smoke fireworks demonstration.
At the live testing session, six prominent China fireworks enterprises showcased their latest micro-smoke, sulfur-free designs, ranging from ground fountains to high-altitude aerial shells. Comparative evaluations indicate clear quality improvements across five major product categories, including fountains, display shells, combination fireworks, and firecrackers.

Inspection report and monitoring instruments measuring PM2.5 and PM10.

Live demonstration of new fireworks — right side shows newly developed product.
The products demonstrated during this test will be officially unveiled at the 17th Liuyang Fireworks Cultural Festival, where they will compete in the 5th Xiang-Gan Creative Fireworks Competition and the 12th Hunan Fireworks New Product Evaluation Contest. Visitors and industry professionals will have the opportunity to see the new low-smoke, sulfur-free offerings in live display conditions.

Live demonstration of new fireworks — right side shows newly developed product.
In recent years, Liuyang — widely recognized as the hub of China fireworks — has placed growing emphasis on eco-friendly innovation. Efforts to solicit global ideas for green fireworks designs have produced a number of novel, safe, and environmentally conscious benchmark products. These innovations are expected to spark a wave of creativity at this year’s festival and help steer the future of Chinese Fireworks Exports toward higher environmental standards.
About PyroNexa

PyroNexa is a global wholesale supplier of high-quality fireworks dedicated to innovation, safety, and sustainability. With deep roots in Liuyang’s fireworks ecosystem, PyroNexa actively supports the development and international promotion of eco-friendly products, contributing to the modernization of Chinese Fireworks Exports and the global adoption of greener celebration standards.
