93-0061-00 Rev. A
4
Adflo
®
Turbo Unit
1.1 Principles of Operation
Adflo
®
Turbo Unit is a belt-mounted, powered air
purifier. Combined with the appropriate Hornell
headpiece, it helps to provide respiratory protection
from specific airborne contaminants.
The Adflo
®
Turbo Unit features a constant-flow blower
and filter cover that houses a spark arrestor, a prefilter,
and an HE particle filter. The Unit’s battery pack, belt,
breathing tube, airflow indicator, battery charger and
carry bag are all standard equipment. An
OV/SD/CL/HC Adflo
®
Cartridge is available and can
be added to the Adflo
®
unit.
The Adflo
®
Turbo Unit draws ambient air through its
filter/cartridge and supplies filtered air via a breathing
tube. The Adflo
®
Turbo Unit’s battery pack provides
5.5 to 13 hours of operation per charge, depending
upon particle filter loading and filter configuration.
The Adflo
®
Turbo Unit is equipped with automatic
flow control: the motor power is automatically
regulated during operation to compensate for the state
of the battery and the level of airflow resistance caused
by the HE filter and prefilter being loaded with
particles. This automatic control ensures a constant
airflow to the user. Should the airflow fall below the
manufacturer’s minimum design flow rate for any
reason, an audible alarm will sound and the red LED
on the on/off switch will flash to warn the user to
immediately leave the contaminated environment.
1.2 Respirator Approvals and Limitations
Refer to the (NIOSH 42 CFR 84) Approval Labels
supplied with the Adflo
®
Turbo Unit for the approved
purifier/headpiece combinations.
The Adflo
®
Turbo Unit has a new, exclusive design that
features a “stacked” filtration system. Unlike any other
design, the standard Adflo
®
configuration with the HE
particle filter can be “stacked” with the addition of an
Adflo
®
Cartridge for supplemental protection against
specific fumes and vapors.
In either configuration, the standard Adflo
®
Turbo
Filter Cover holds a spark arrestor, prefilter and
HE particle filter which always must be used. The
Adflo
®
Turbo Filter Cover snap-fastens directly onto
the turbo unit to provide high efficiency particle
filtration. When used with the Adflo
®
Cartridge, the
Adflo
®
Turbo Filter Cover snap-fastens to the
OV/SD/CL/HC cartridge. An on-site safety specialist
or industrial hygienist must review the HE filter label
to determine the applicability for a given
environment/application.
The Adflo
®
Cartridge consists of OV/SD/CL/HC
elements housed in a black plastic shell. The Adflo
®
Cartridge snap-fastens onto the Turbo Unit. Then, the
Adflo
®
Turbo Filter Cover (with the installed spark
arrestor, prefilter and HE particle filter) snap-fastens
onto the Adflo
®
Cartridge to make a complete
Purifier/filtration unit. This “stacked” filtration
provides protection from particles, organic vapor, sulfur
dioxide, chlorine, and hydrogen chloride. An on-site
safety specialist or industrial hygienist must review the
HE filter label combined with the OV/SD/CL/HC
cartridge label to determine the applicability for a given
environment/application.
The following limitations apply to all Adflo
®
Turbo
Unit filter configurations:
• NOT for use in atmospheres Immediately
Dangerous to Life or Health (IDLH).
• NOT for use in atmospheres containing less than
19.5% Oxygen.
• NOT evaluated as an ignition source in flammable
or explosive atmospheres by NIOSH.
• NOT to be used without the Adflo
®
Turbo Unit
turned on since there is a risk of high concentration
of CO
2
and the oxygen level in the headpiece will
fall.
• NOT to be used if the Adflo
®
Turbo Unit does not
supply enough airflow (low flow alarm).
• NOT to be used in confined spaces with limited air
supply.
• NOT to be used if the user is not sure about the
contamination present in the ambient air.
• The Adflo
®
Turbo Unit is intended for use in the
temperature range of 23° to 131°F (-5°C to 55°C).
At temperatures below 50°F (10°C), the air inside
the headpiece can be perceived as being cold.
The following limitation applies to standard HE filter
configuration:
• NOT to be worn as protection against gases or
vapors.
The following limitation applies to HE filter plus the
OV/SD/CL/HC Cartridge configuration:
• Follow cartridge change schedule, as established by
an on-site safety specialist or industrial hygienist, to
ensure that cartridges are replaced before
breakthrough occurs.
Chapter 1 General Information
