A lot of pumps that produce pressure are made for high-pressure aeroponics, which is about 35 psi. At that pressure, when forced through a mister head, the mist will atomize, breaking into the smallest droplets that hang in the air for the longest time. Smaller systems use a small accumulator tank and a small pump. Larger systems have a big pump on a cycle timer, like a shallow well jet pump.
Do you know the psi you need? I doubt you need it as high as 35.
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