SURVIVAIR Opti-Fit
™
Convertible Facepiece
1
I. INTRODUCTION
This manual provides instructions for the use and main-
tenance of the various respirator operating configura
-
tions achievable with the SURVIVAIR Opti-Fit
™
Convert-
ible full facepiece respirator models 7540, 7640, 7740,
7541, 7641, and 7741. The base configuration of the
SURVIVAIR Opti-Fit facepiece allows use as an air pu-
rifying respirator (APR) in conjunction with S Series par-
ticulate filters, gas and vapor cartridges, and cartridge/
filter combinations as required for specific contaminant
protection. Additional components can be attached to
the SURVIVAIR Opti-Fit Convertible to easily convert it
to a front or side hose connection continuous flow sup
-
plied air respirator (CF-SAR) and mask or belt mounted
powered air purifying respirator (PAPR) configurations.
Before using a respirator in a contaminated work
place, you must, at a minimum, understand the ele-
ments of a respirator program, your work place, and
the contaminants you are trying to protect yourself
against. Determining the applicability of a respirator
is difficult. You must be able to calculate the service
life of the cartridges, determine the type and con-
centration of contaminants, and determine whether
the contaminants have poor warning properties,
etc. If you do not have a complete understanding
of the use of respirators, you must seek the aid of
a certified industrial hygienist or contact SPERIAN.
You must read and understand this manual and be
trained in the proper use of the respirator before
wearing it in a contaminated atmosphere.
II. SAFETY PRECAUTIONS
The Warnings, Cautions, and Notes contained in this
instruction sheet have the following significance
WARNING
Maintenance or operating procedures
and techniques that may result in seri-
ous personal injury, serious personal ill-
ness, or death if not carefully followed.
CAUTION
Maintenance or operating procedures and
techniques that may result in damage to
equipment and/or minor to moderate per-
sonal injury if not carefully followed.
NOTE
Maintenance or operating procedures and
techniques or information considered impor-
tant enough to emphasize.
III. DESCRIPTIONS OF RESPIRATOR OPERATING
CONFIGURATIONS
The SURVIVAIR Opti-Fit full facepiece contains two
connectors on each side of the lens for attaching par-
ticle filters, gas/vapor cartridges or air hoses, as well
as a front adapter for a supplied air breathing hose or
powered air purifying blower. This range of connections
allows the SURVIVAIR Opti-Fit Convertible facepiece
to be configured, through the use of additional compo
-
nents, as a supplied air respirator (CF-SAR) or powered
air purifying respirator (PAPR).
The full facepiece is designed with a wide lip silicone
skirt and five point head strap harness (models 7540,
7640, and 7740). The facepiece is also available with
a Headnet
™
retention system (models 7541, 7641, and
7741). All facepieces contain a lens treated with an
abrasion resistant coating. The facepiece is available
in three sizes, small, medium and large. While a nose
cup is standard, the facepiece may be equipped with an
optional spectacles kit, clear or tinted lens covers and
neck strap kit.
The connection versatility of the SURVIVAIR Opti-Fit
™
Convertible full facepiece and available components and
accessories (see Section VI, Parts List) allow it to be as-
sembled into the following operating configurations:
A. Air Purifying Respirator (APR) Configuration
The side port connectors are used to attach S series
particulate filters, gas and vapor cartridges, and car
-
tridge/filter combinations as required for a specific con
-
taminant protection. The front adapter can be removed
and replaced with a plug to reduce the front profile of
the mask.
B.Continuous Flow Supplied Air Respirator
(CF-SAR) Configuration
With one side port connector port capped with a sup-
plied screw cap, a high volume, low pressure breath-
ing tube can be attached to the second side connector
to provide a constant flow of air to the facepiece when
connected to an external air source. An alternate con-
nection option uses a breathing tube connected to the
front adapter with both side port connectors capped. An
optional Vortex air cooler may also be connected in-line
to provide cool air to the facepiece.
NOTE
The Vortex air cooler cannot be used in
conjunction with ambient air pump supply
systems.
The SURVIVAIR Opti-Fit
™
Convertible can also be con-
figured as a CF-SAR with P100 filter cartridges and the
breathing tube connected to the front adapter. When the
air line hose is disconnected from the air line quick cou-
pler, a check valve in the air line couple assembly pre-
vents leakage of contaminated air through the facepiece
hose, and the wearer’s air is drawn through the P100
filters. This feature allows for safe entry, exit or escape
from a dangerous area in case of air supply failure.
For all CF-SAR configurations, when used at pressures
specified in the tables in Section VIII, Part B.8, air is de
-
livered to the facepiece at a rate between 115 and 425
liters per minute (4-15 cubic feet per minute [cfm]).
