Cleanroom standards are guidelines that ensure controlled environments for manufacturing and research, particularly in industries like pharmaceuticals and electronics. These standards regulate factors such as air cleanliness, temperature, humidity, and particle contamination to maintain product quality and safety. Organizations like the International Organization for Standardization (ISO) have established specific classifications, such as ISO 14644, which defines cleanroom cleanliness levels based on the number of particles allowed per cubic meter of air. Adhering to these standards helps prevent contamination and ensures compliance with regulatory requirements, ultimately protecting both products and consumers.