Antimicrobial Spray Dressing for Air-conditioners Description: JUC is sprayed on the air-conditioner filter to provide the filter with long-acting antimicrobial function. When air is filtered through, pathogenic microorganisms (bacteria, fungi, and viruses) in the air are adsorbed and killed to improve the indoor air quality and decrease the infection routes of microorganisms. Usage: After cleaning and air-drying, the filter should be sprayed three times respectively on both sides. The filter should be cleaned and sprayed again after one or three months according to the air quality.