Q: Can liquids be transferred in a pass box?
A: Use leak-proof models and sealed containers to prevent contamination.
Q: What are the power requirements?
A: Typically 220V/50Hz; electronic interlock models need stable voltage.
Q: When to replace the HEPA filter?
A: Replace when pressure differential resistance doubles the initial value.
Q: Where to buy a stainless steel pass box?
A: Purchase from certified cleanroom equipment suppliers/manufacturers (like us) for compliant products and support.