A stackable environmental air sampling pump includes an external housing, an air pump inside the external housing, and a telescopic mast attached to the housing and configured to extend from the external housing. The external housing includes a recessed portion configured to receive a flexible tubing wrapped around the recessed portion and a handle on a first side of the external housing. The external housing further includes a first interlocking feature of a first type on a second side of the external housing, wherein the first interlocking feature is configured to connect to an interlocking feature of a second type. The external housing further includes a second interlocking feature of the second type on a third side of the external housing, wherein the second interlocking feature is configured to connect to an interlocking feature of the first type.