Abstract: ：The need for long-lasting germicidal condition of microbe-hosting appliances, such as airconditioners, refrigerators, smart toilet seats and air purifiers, inevitably becomes a real concern in our daily life. Unfortunately, regular antimicrobial technologies fail to solve the pain point, as they do not meet the comprehensive requirements for “broad-spectrum, durable, efficient, free of by-product, eco-friendly, harmless, cost-efficient, free of electric or light power” properties. The antimicrobial technology based on acid-surface mechanism creates harmless and long-lasting sterile conditions on surfaces, and consequently solves the problem. This study is to introduce the mechanism of the acidsurface antimicrobial technology and its feasible applications in appliances, and to provide optimized solutions for appliance sanitation and disinfection based on laboratory researches and third-party certification. It is hoped that the research contributes to the improvement of the self-disinfecting property of appliances.

Key words: Acid-surface antimicrobial technology, Acidic antimicrobial surface, Epoxy-resin-based antimicrobial paint, Acrylic antimicrobial paint