Smoke detection in high-dust or high-humidity environments

Every so often a client asks for reliable detection in an environment that kills standard optical detectors within weeks. Warehouses with dust, commercial kitchens, swimming pool plant rooms, laundries. What are you using? - Aspirating systems (VESDA, Airsense, Wagner) - Linear beam detectors - Sealed multi-sensor detectors designed for the environment - Thermal cameras Brand recommendations welcome, but please say what you actually installed and how it is performing.