Marple-Miller Low-Flow Impactor (MMI^†)

• The low flow (model 150P) MMI^† is used for testing aerosol drug delivery devices at flow rates (4.9 and 12.0 L/min) that are representative of use by infants and small children. 
• This impactor was developed by the manufacturer (MSP Corp.) in the mid 1990s with support from Trudell Medical International. 
• It has sharp cut-point characteristics, low internal particle holdup, and is easy to operate.
• The operating size range is similar to that of the ACI and is also used with a USP/Ph.Eur. induction port.