The Model 687 Mouse Ventilator is for mice and perinatal rats up to 200 g (7 oz). It has a single piston and cylinder assembly. The tidal volume range is 0.1 to 1 cc in 0.1 cc increments. Setting the cylinder stroke between gradations it is possible to achieve finer resolution in tidal volume settings. The piston travels to the end of the cylinder completely emptying the cylinder and minimizing the dead space of the breathing circuit.
Both models feature a numerical LED to display the respiratory rate which can be set from 18 to 150 strokes/minute. Volume and rate settings can be adjusted while the ventilator is running.
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