Hospital Isolation Rooms are controlled best by Phoenix Controls

In the event of a pandemic infectious outbreak, isolation rooms are most effective with Phoenix controls.

If a disaster outbreak occurs, hospitals must have plans in place for receiving a surge of patients with a variety of possible infectious diseases or conditions. Pandemic-causing infectious diseases, such as the viruses that caused the SARS (2003), H1N1 (2009), and EBOLA (2014) outbreaks, pose a particular public health threat that must be mitigated through careful planning.

Infectious patients require negative pressure in their isolation room relative to the adjacent corridor, so that the direction of airflow is always into the isolation room. This limits the possibility of infectious particles generated by the patient escaping the room. Positively pressurized protective isolation rooms are needed when patients have an impaired immune system, for example, if many burn victims are among the patients of a surge or if patients have been exposed to radiation.

When designing negative pressure isolation rooms, the Canadian Institute of Architects (CIA) recommends the room be pressurized to -2.5 Pa relative to the adjacent hallway with 12 air changes per hour (ACH), of which 2 ACH must be outside air. The CIA also recommends that isolation room exhaust be directed outdoors and HEPA filtered if not released from an on-roof stack, though other disposal routes are also possible. For protective positively-pressurized isolation rooms, the Centers for Disease Control and Prevention (CDC) recommends 12 ACH, HEPA filtered supply air, and more than 2.5 Pa of pressure, though 8 Pa is recommended. With the Phoenix valves all these standards are easily compromised.

The Phoenix Venturi Valve requires no preventive maintenance and are independent to static pressure. This allows the valve to not get dirty, as most HEPA filter do. In the case where the valve has a strong build up, the mechanism inside (spring cone) will adjust and open accordingly to maintain the flow needed to pressurize the space. Any changes to the isolation fans won’t affect the flow of the Phoenix Valve.

Active monitoring of the pressure differential between an isolation room the adjacent corridor is also recommended.

This also can be done with the Advanced Pressure Monitor by Phoenix Controls. The APM2 is easily compatible and easily integrated with most BAS companies today. It is a flexible, touchscreen local display unit that measures pressure, temperature, and humidity for pressurized spaces for the purpose of ensuring integrity of ventilation and airflow. The APM2 is more than a pressure monitor.

Flexible use of analog inputs allows temperature and humidity sensors to be configured for these additional values to be displayed for the user. A digital output can also be used for local occupancy control of an airflow, control valve or other two-state device.

The APM2 provides a bright, easy-to-read display that the results of having both Phoenix valves and APM working together for isolation room control has been implemented all over Ontario by Belnor Engineering. It has been successful in big hospitals such as Oakville Hospital with over 60 isolation rooms. Humber Regional Hospital with over 100 isolation rooms. Belnor provides the best innovative controls with certified technicians trained directly by Phoenix Controls.

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