Mist carryover can interfere with CEMS and process gas analyzers by wetting probes, dissolving soluble gas species, depositing salts, plugging filters, and disturbing sample flow. Sampling temperature and downstream condensation must be checked before attributing every wet analyzer problem to the demister.

Mist eliminator DP alarms and cleaning triggers should be based on clean load-specific baselines and deterioration trends rather than one universal pressure-drop limit. Maintenance, high-DP alarm, and process-limit thresholds may serve different purposes.

Wire mesh demisters with the same material, wire diameter, density, and thickness can behave differently because knitting pattern and layer orientation change internal gas and liquid paths. Consistent mesh construction is therefore an important part of hydraulic performance.

Acid dew-point condensation can form aggressive liquid on cool mist eliminator frames, clips, and support rings even when the central gas and active media remain relatively dry. Local cold spots, insulation, wet-dry cycling, drainage, and structural materials should therefore be reviewed together.

Evaporative crystallizer mist eliminators handle highly concentrated mother-liquor droplets that can crystallize directly inside the separator. Boiling entrainment, scaling, vacuum pressure drop, wash strategy, open geometry, and condensate purity are central design issues.