Barrierbac Electrostatic Filters

Barrierbac breathing system filters from Medtronic MITG guard the anesthesia circuit and the patient's airway against airborne contaminants during ventilation and anesthesia delivery. Built around electrostatic filtration media, these filters trap bacteria and viruses without imposing the high resistance to breathing that comes with denser mechanical designs — a balance that matters most for spontaneously breathing patients and long procedures where every added effort of respiration counts.

This collection carries the Barrierbac Electrostatic Filter (350U5865) and the Barrierbac S Electrostatic Filter (350U5879). Both attach inline within the breathing circuit to help prevent cross-contamination between patient and machine, reduce the frequency of circuit changes, and protect costly anesthesia and ventilator equipment from moisture and microbial passage. The electrostatic media keeps dead space and airflow resistance low, which is why clinicians reach for these in the operating room, PACU, and ICU alike.

Anesthesia and respiratory staff evaluating filters usually weigh three things: filtration efficiency against bacteria and viruses, breathing resistance and dead space, and whether the filter is single-patient use. Barrierbac filters are designed for single-use to eliminate reprocessing risk, and their standard circuit connections make them straightforward to integrate into existing setups. Because filter performance depends on correct sizing for a patient's tidal volume, confirm the model suits your circuit and patient population before ordering in volume.

Stock the right filter for each case and keep your circuits protected shift after shift. For related airway and circuit supplies, browse our full Respiratory category.