A device for removing entrained air or gas from fluids includes a first chamber having a fluid inlet and an outlet, a second chamber, adjacent said first chamber, having a plurality of channels, a porous barrier separating the first chamber and the second chamber and a vent in fluid communication with the second chamber. The inlet is connected to the first chamber through at least one fluid passage. Fluid flows from the inlet, through the passage, and into the first chamber. A fluid dead zone adjacent the barrier assists an air or gas bubble to coalesce and pass through the barrier into the second chamber. The plurality of channels within the second chamber collect the air or gas and direct it to the vent in communication with the channels. A clip, or similar device, may be used to secure the device to medical equipment adjacent the patient or fluid source.