Frequently Asked Questions

Sterile manufacturing areas require HEPA filtration with integrity testing at intervals not exceeding six months, defined air change rates (typically 20+ per hour for Grade B, 6+ for Grade D), maintained pressure differentials between areas of different cleanliness grades, continuous environmental monitoring for particles and microorganisms, and temperature and humidity control within validated ranges.

Schedule M follows WHO classifications: Grade A (highest cleanliness, for critical operations like aseptic filling), Grade B (background environment for Grade A zones), Grade C (for less critical operations in sterile manufacturing), and Grade D (minimum classification for manufacturing environment). Each grade has specific particle count limits both 'at rest' and 'in operation'.

Storage areas must have sufficient capacity for orderly storage with proper separation. Separate designated areas are required for quarantined materials, approved materials, rejected materials, recalled products, and returned products. Special attention must be given to highly active materials, narcotics, dangerous drugs, and substances with fire/explosion risks. Temperature and humidity must be controlled and monitored.

Production areas must be adequate in size for orderly equipment placement and material flow. Walls, floors, and ceilings must be smooth, crack-free, with coved junctions for easy cleaning. Surfaces must not shed particles and must be easy to clean and disinfect. Cross-contamination prevention through proper layout and segregation is mandatory.