Patent ID: 6915645

Claim:
An at least partially cooled product display cabinet comprising: a product display cabinet, means for cooling said cabinet, said means for cooling comprising at least one means for flowing cooled air into at least one area of said product display cabinet, at least one means for static cooling, or both, at least one sensor (a, a′, a″, b, b′, b″, c, c′, c″, d, d′, d″), in and/or on the product display cabinet, for detecting and measuring contaminants and/or particles of dirt in the flowing cooled air, and a warning device wherein said at least one sensor (a, a′, a″, b, b′, b″, c, c′, c″, d, d′, d″) is dynamically connected to said warning device, said warning device is activatable in response to a set contaminant and/or dirt particle value being exceeded.