A new line of settle plates is designed for passive air monitoring in cleanrooms and isolators, personnel monitoring, and active air monitoring with microbial air sampling (MAS) systems. Named ICRplus, the plates are produced under aseptic conditions, gamma-irradiated, and triple-bagged. Besides a locking mechanism, the plates feature a two-way closure system—the CLOSED position can allow safe transportation and aerobic incubation; the VENT position can expand incubation for the detection of anaerobic and microaerophilic microorganisms. Each 90 mm plate has a filling volume of 30 mL. The plates are filled with casein soybean digest agar, or tryptic soy agar, and are offered in formulations with disinfectant neutralizers.