
Pass-through solutions must align precisely with ISO 14644-1, ISO 14644-4, and FDA 21 CFR Part 11 contingency protocols, particularly when handling sterile components or hazardous materials between ISO Class 3–8 environments.
Selecting the optimal pass box solution requires evaluating initial purchase price against operational expenses over five years, particularly in high-throughput environments with frequent sterilization cycles.
| Attribute Category | Standard Material Grade | Maintenance Budget Impact | ISO 14644 Class Impact |
|---|---|---|---|
| Material Construct | Type 304 Grade (EN 1.4301) vs. 316L (EN 1.4401) | +$800 to $1,400/yearly (316L) | Steady ($500-800 increase) |
| Autoclave Cycles | American cycle: 134°C/17min vs. European sterilization protocols | +Up to $700/year (pyrogen testing) | -ISO Class 7 essential |
| Filter Configuration | Standard push/pull design (ISO Class 7) vs. dual-filter cascade systems | +Up to $2,200/mo (>100 cycle/shift) | +ISO Class 4 requirement |
| Airconautics | Elementary (10 air changes/h) vs. validated N-1 air balancing systems | +$300-600/year (heating/cooling) | +Critical for EU GMP Annex 1 |
| Certification | WEEE/Directive 2011/65/EU compliance stickers vs. complete documentation | -$250/year (documented vs. informal) | +Required for ISO Class 5+ |
Farclean offers a comprehensive line of electric/hydraulic pass boxes certified to ISO 14644-1 and FDA cGMP 21 CFR 211 standards for pharmaceutical, biotech, food processing, and semiconductor manufacturing applications.