A suction device (1200, 1210, 2400, 4100, 4200, 4300, 4400, 4500), comprising: a housing having an intake port and an output port with a chamber extending therebetween; a pressurized gas port (2111, 2411, 4312) extending from the housing between the intake port and the output port; wherein the intake port is configured to receive a suction flow (4104, 4204, 4304, 4604, 4804, 4904) and the pressurized gas port (2111, 2411, 4312) is configured to receive a pressurized gas flow; a flow controller coupled to the housing and movable between a first position and a second position; a conduit (2129, 2429) formed within the housing between the intake port and the output port, the conduit (2129, 2429) having a first hollow segment (2122, 2401) with a central axis (2126, 4418, 4518) and a second hollow segment (2125, 2402) with the central axis (2126, 4418, 4518); and wherein, when the flow controller is in the first position, a pressure gap (1900, 1931, 2131, 2431) extends a first distance between the first and second hollow segments (2122, 2401, 2125, 2402) and the chamber has a pressure less than ambient air pressure, characterized in that the flow controller is rotatable between the first position and the second position, wherein the second hollow segment (2125, 2402) translates rotational motion of the flow controller, such that when the flow controller is the first position, the second hollow segment (2125, 2402) is a first distance from the first hollow segment (2122, 2401) and when the flow controller is in the second position, the second hollow segment (2125, 2402) is a second distance from the first hollow segment (2122, 2401), the second distance less than the first distance. a housing having an intake port and an output port with a chamber extending therebetween; a pressurized gas port (2111, 2411, 4312) extending from the housing between the intake port and the output port; wherein the intake port is configured to receive a suction flow (4104, 4204, 4304, 4604, 4804, 4904) and the pressurized gas port (2111, 2411, 4312) is configured to receive a pressurized gas flow; a flow controller coupled to the housing and movable between a first position and a second position; a conduit (2129, 2429) formed within the housing between the intake port and the output port, the conduit (2129, 2429) having a first hollow segment (2122, 2401) with a central axis (2126, 4418, 4518) and a second hollow segment (2125, 2402) with the central axis (2126, 4418, 4518); and wherein, when the flow controller is in the first position, a pressure gap (1900, 1931, 2131, 2431) extends a first distance between the first and second hollow segments (2122, 2401, 2125, 2402) and the chamber has a pressure less than ambient air pressure, characterized in that the flow controller is rotatable between the first position and the second position, wherein the second hollow segment (2125, 2402) translates rotational motion of the flow controller, such that when the flow controller is the first position, the second hollow segment (2125, 2402) is a first distance from the first hollow segment (2122, 2401) and when the flow controller is in the second position, the second hollow segment (2125, 2402) is a second distance from the first hollow segment (2122, 2401), the second distance less than the first distance.