Negative Pressure Room Verification

Daily verification checklist for negative pressure isolation rooms using smoke test or magnehelic gauge readings.

Inspection Details

• Room identifier recorded
  Enter the room number, unit, or isolation room identifier being verified.
• Inspection date and time recorded
  Document when the daily verification was completed.
• Inspector name and role recorded
  Enter the name and job title of the person performing the verification.
• Verification method used
  Select the method used to verify negative pressure.

Pressure Verification

• Room maintains negative pressure relative to adjacent area
  Confirm the room is under negative pressure compared with the corridor or adjacent space.
• Measured pressure differential meets facility threshold
  Record the pressure differential between the isolation room and adjacent area.
• Gauge reading stable and visible at time of check
  Confirm the magnehelic or differential pressure gauge was readable and not fluctuating abnormally during the check.
• Smoke test performed at door or designated test point
  Confirm a smoke test was performed when required by local procedure or when gauge readings were questionable.
• Smoke movement confirmed into room
  During smoke testing, verify smoke is drawn into the room rather than escaping to the corridor or adjacent area.

Room Condition and Airflow Controls

• Door closed and self-closing function operating
  Verify the isolation room door is closed and the self-closing mechanism functions properly.
• Door seals and frame show no visible gaps affecting pressure containment
  Inspect the door perimeter, seals, and frame for visible gaps, damage, or conditions that could compromise negative pressure.
• Anteroom or buffer space, if present, is operating as intended
  If the room includes an anteroom, confirm it is being used per facility procedure and does not compromise pressure control.
• Supply and exhaust air devices unobstructed
  Verify vents, grilles, and exhaust points are not blocked by furniture, equipment, linens, or stored items.

Monitoring, Documentation, and Follow-Up

• Previous day or shift issues reviewed
  Confirm prior deficiencies, alarms, or maintenance issues were reviewed before the room was returned to service.
• Any alarms or abnormal readings documented
  Record whether the room pressure alarm, gauge, or monitoring system showed any abnormal condition during the check.
• Corrective action initiated for any deficiency
  If any item failed, confirm the issue was escalated to facilities, infection prevention, or the competent person per site procedure.
• Room remains in service or taken out of service
  Select the operational status after inspection.
• Supervisor or infection prevention notified when required
  Confirm escalation occurred when the room failed verification or required follow-up.