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Q: What class of respiratory protection that is not recommended for use in hazardous atmosphere containing less than 19.5 oxygen?
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In a CBRNE incident involving an unknown hazardous substance what is the lowest level of respiratory protection?

Atmosphere-Supplying respirators (SCBA, SAR)


Level is used when nuisance contamination is present only requiring the lowest form of chemical andor respiratory protection?

Level A protection is required when the highest level of respiratory, skin, eye, and mucous membrane protection is needed due to the presence of identified vapors, gases, particulates, or liquid splash that pose a high risk. Level B protection is used when the highest respiratory protection is needed, but a lesser degree of skin protection is acceptable. Level C protection is suitable when respiratory protection is required, but skin and eye contact are unlikely.


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Michael F. Teresinski has written: 'Industrial respiratory protection' -- subject(s): Breathing apparatus, Protection, Respiratory organs


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Protection to the lungs


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Respiratory Protection Equipment


If the moon has no atmosphere it has no?

protection


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Enclosure Local Exhaust Ventilation Respiratory Protection


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Respiratory tree is present in echinoderms eg. sea urchin it helps in respiration and protection from predators by evisceration .


Respiratory protection equiment must be approved By whom?

The National Institute for Occupational Safety and Health (NIOSH) approve respiratory equipment.


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when determining whether a respiratory Protection program is needed


What part of the atmosphere gives us protection?

The ozone layer gives us the protection from radiation


Does venus have a cloud cover for protection?

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