Breathing zone


Also found in: Acronyms.

Breathing zone

The region within an occupied space between planes, 3 and 6 feet above the floor and more than 2 feet from the walls or fixed air-conditioning equipment.
References in periodicals archive ?
Figure 6 shows that supply air temperature has nearly no impact on the distribution of mean contaminant concentration in the breathing zone for the four hybrid systems when supply air temperature was between 15.
Effect of supply air temperature on air distribution in a room with radiant heating and mechanical ventilation
Since a N95 filtering face piece respirator greatly reduces a wide size range of particles from entering the wearer's breathing zone and protects the user from both droplet and airborne particles, it does afford the clinician protection.
Protection against plume: experts explain why PPE is meant to supplement smoke evacuation equipment
The VC-1 case results in similar breathing zone levels of "A" to the human body ozone reaction products from Rim et al.
Effect of Chemical Reactions in the Personal Micro-environment on Inhaled Air Quality
Although the manikins inhale through their mouths in the upper zone, they inhale a large amount of air from the lower (cleaner) zone because this air is transported up to the breathing zone by the thermal boundary layer around the manikins (Brohus and Nielsen 1996).
Airborne cross-infection risk between two people standing in surroundings with a vertical temperature gradient
One of six personal breathing zone air samples for lead exceeded the Occupational Safety and Health Administration action limit (OSHA AL) of 30 micrograms per cubic meter ([mu]g/[m.
Evaluation of employee exposures at a PCB plant: a review of best-in-class controls for maintaining factory worker health
To minimize employee exposure when emptying, the machine is opened with the motor running, creating an airflow away from the operators breathing zone.
Containment vacuum for safe contaminant disposal
An automatic safety controller displays, monitors, and maintains proper airflow to ensure fumes and vapors do not enter the operator's breathing zone.
Chemical workstation with safety features
Methodology: Total dusts were collected within the workers' breathing zone using a Personal Air Sampler (PAS) and respirable dusts were measured using a real time monitor (Micro Dust Pro) with a particle size adapter in different parts of the factory.
Exposure to tobacco dust in primary tobacco-processing workers
These levels are generated right at the breathing zone of the patient, the dentist, and the dental assistant
Is your dentist 'mercury safe?'
The highest paraquat air concentration measured during the 25 min spray application at operator's breathing zone was 125 ug m-3 that was slightly above the TLV (threshold limit value) and REL (recommended exposure limit) (100 ug m-3 ) of ACIGH (American Conference of Government Industrial Hygienists) and NIOSH (National Institute for Occupational Safety and Health, 1994).
Airborne Paraquat Measurement and its Exposure to Spray Operators in Treated Field Environment
In the United States, OSHA PEL (permissible exposure levels) requirements for styrene require that the breathing zone within the workplace average less than 50 ppm (parts per million) over an 8 hour period.
ENERGY-EFFICIENT VENTILATION SYSTEM FOR FIBERGLASS MAKER
If the air takes a shortcut, it may never get into the breathing zone.
Tight building troubles: green is good, but does it have the potential to be bad?
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