Regular visual inspection and vacuum integrity checks are recommended as part of routine maintenance, alongside ongoing monitoring of nitrogen levels and temperature so any gradual degradation is caught early rather than discovered as a sudden failure. Exact frequency depends on the manufacturer’s guidance for that specific model and how critical the stored material is, so a tank holding irreplaceable patient samples generally warrants a tighter monitoring and servicing regime than one used for general laboratory consumables. Cryolab offers servicing alongside equipment supply precisely because ongoing maintenance is as important as the initial purchase decision, and we would always recommend following the specific service schedule set for your equipment rather than an assumed industry standard.