Personalized ventilation (PV) supplies clean air close to the occupant and directly into the breathing zone
, so as to improve the inhaled air quality and to reduce the risk of airborne cross-infection in comparison with total volume (TV) ventilation (Cermak and Melikov 2007).
To perform real-time personal monitoring, the real-time monitoring device should be positioned as close as practicable to the breathing zone
of the employee (Fig.
The exhaled airflow from a source manikin can directly reach the breathing zone
of the target manikin.
is not based on dilution ventilation, but is instead a directed air flow system designed to ventilate the breathing zone
of the worker, not the entire building.
Above the painted deck in the operator breathing zone
(~70 cm above the deck), and
Instead, exposure data are best collected in a person's breathing zone
, while activities are being conducted.
Central system chip/dust collectors work well and can be hooked directly to the equipment, thereby pulling the dust at the source and preventing it from traveling into the worker's breathing zone
Exposure to environmental tobacco smoke in sixteen cities in the United States as determined by personal breathing zone
Additionally, Next Safety's respirator platform is engineered to allow the administration of critical respiratory medications directly into the breathing zone
of a sealed mask, enhancing the safety and discharge of pulmonary medical protocols into a purified air environment.
Monitoring for exposure from welding fumes is accomplished by drawing air from a worker's breathing zone
through a filter.
Clean room" quality air is delivered to a person's breathing zone
in less than 3 minutes after the unit begins operating.
Most fume extraction systems are similar, theoretically, insofar as they feature a pump that suctions fumes away from the breathing zone
through a filter system.