Phosphoric acid and fertilizer scrubbers can expose mist eliminators to acidic droplets, fluorides, dissolved salts, solids, and sticky deposits. Open geometry, washing, drainage, compatible materials, and maintenance access can be more important than maximum clean-condition efficiency.

Nitric acid absorber mist can come from mechanical entrainment or fine condensation aerosol. Separator selection should distinguish these mechanisms and consider acid concentration, temperature, particle size, liquid loading, pressure drop, condensation location, and outlet emission requirements.

Mist eliminators in chlor-alkali and wet chlorine service can face corrosive wet chlorine, concentrated brine droplets, salt crystallization, and demanding material requirements. Separator geometry, drainage, wash strategy, and all structural materials should be reviewed together.

Mist eliminators in oil and gas knockout drums provide final droplet removal after bulk-liquid separation. High pressure, hydrocarbon properties, slugging, foaming, level control, fouling, gas turndown, pressure drop, and downstream compressor requirements all influence the correct separator design.

Cooling tower drift eliminators and process mist eliminators use related inertial separation principles but are optimized for different duties. Drift eliminators emphasize low pressure drop and large airflow, while process demisters may require finer separation, specialized materials, or stricter carryover control.