* Canister or cartridge
means a container with a filter, sorbent, or catalyst, or combination of
these items, which removes specific contaminants from the air passed through the container.
* Demand respirator
means an atmosphere-supplying respirator that admits breathing air to the
face piece only when a negative pressure is created inside the face piece by inhalation.
* Emergency situation
means any occurrence such as, but not limited to, equipment failure,
rupture of containers, or failure of control equipment that may or does result in an uncontrolled
significant release of an airborne contaminant.
* Employee exposure
means exposure to a concentration of an airborne contaminant that would
occur if the employee were not using respiratory protection.
* End-of-service-life indicator
(ESLI) means a system that warns the respirator user of the
approach of the end of adequate respiratory protection, for example, that the sorbent is
approaching saturation or is no longer effective.
* Escape-only respirator
means a respirator intended to be used only for emergency exit.
*
Filter or air purifying element
means a component used in respirators to remove solid or liquid
aerosols from the inspired air.
*
Filtering face piece (dust mask
) means a negative pressure particulate respirator with a filter as
an integral part of the face piece or with the entire face piece composed of the filtering medium.
*
Fit factor
means a quantitative estimate of the fit of a particular respirator to a specific
individual, and typically estimates the ratio of the concentration of a substance in ambient air to
its concentration inside the respirator when worn.
* Fit test
means the use of a protocol to qualitatively or quantitatively evaluate the fit of a
respirator on an individual. (See also Qualitative fit test QLFT and Quantitative fit test QNFT.)
*
Helmet
means a rigid respiratory inlet covering that also provides head protection against
impact and penetration.
*
High efficiency particulate air (HEPA
) filter means a filter that is at least 99.97% efficient in
removing monodisperse particles of 0.3 micrometers in diameter. The equivalent NIOSH 42 CFR
84 particulate filters are the N100, R100, and P100 filters.
*
Hood
means a respiratory inlet covering that completely covers the head and neck and may
also cover portions of the shoulders and torso.
* Immediately dangerous to life or health
(
IDLH
) means an atmosphere that poses an immediate
threat to life, would cause irreversible adverse health effects, or would impair an individual's
ability to escape from a dangerous atmosphere.
*
Interior structural firefighting
means the physical activity of fire suppression, rescue or both,
inside of buildings or enclosed structures which are involved in a fire situation beyond the
incipient stage. (See 29 CFR 1910.155)
18
Summary of Contents for Opti-Fit 9800-25
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