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Reducing air pollution


A variety of air pollution control devices remove pollutants from industrial exhaust streams.
The table below compares dry and wet electrostatic precipitators (ESP) and scrubbers.
Process requirementsDry ESPWet ESPScrubbers
Can handle moist gasnoyesyes
Particles collected in liquidsnoyesyes
Collects particles under one micronyesyesyes
Highly efficient for submicron particles and low energy consumptionyesyesno
Recommended for flammable chemicalsnoyesyes
Table adapted from: crcleanair.com
Which of the devices in the table would be the most effective at collecting submicron particles in flammable chemicals?
Choose 1 answer: