What are the air filtration standards for the food industry?
The air filtration standards for the food industry are stringent to ensure food safety and quality. Compressed air that comes into direct or indirect contact with food must be free of contaminants such as oil, water, and particles. The ISO 8573 series outlines the purity classes for compressed air. Food-grade compressed air must meet specific classes, typically requiring particulate filtration down to 0.01 microns, oil content of less than 0.01 mg/m³, and a dew point of -40°C or lower to prevent moisture contamination.