www.bullard.com
Dual-Cool™ Climate Control Tube
and DC65 Vest User Manual
TM
Includes: DC60 Series Dual-Cool tube, cooling vest connector
hose, reinforcing rings, belt bracket, and belt. Note: The DC65
cooling vest and respirator breathing tube must be ordered
separately.
Function: The DC60 Dual-Cool tube is NIOSH approved to supply a
continuous flow of cool air to Bullard PC90 Series supplied-air
containment respirators. All Bullard parts must be present and
properly assembled to constitute a NIOSH approved respirator.
NOTE
T
he DC60 Dual-Cool tube cannot be used with a low
pressure air source such as an ambient air pump.
Air Quality Requirements
Respirable air must be supplied to the point-of-attachment of the
NIOSH approved Bullard air supply hose, where the air supply
hose connects to the fitting. Always use an inlet filter on your air
source and monitors and alarms as necessary to assure clean,
breathable air.
Supplied breathing air must at least meet or exceed the
requirements for Type 1 gaseous air as described in the
Compressed Gas Association Commodity Specification G-7.1
(Grade D or higher quality) and specified by Federal Law 42 CFR,
Part 84, Subpart J, 84.141(b) and 29 CFR 1910.134(i)(1)(ii).
The requirements for Grade D breathable air include:
Oxygen ......................................................................... 19.5-23.5%
Hydrocarbons in mg/m3 of gas .............................. 5 mg/m
3
max.
Carbon monoxide ...................................................... 10 ppm max.
Carbon dioxide ..................................................... 1,000 ppm max.
Odor ............................................................ No pronounced odor*
No toxic contaminants at levels that make air unsafe to breathe.
* Specific measurement of odor in gaseous air is impractical. Air
normally may have a slight odor.
The presence of a pronounced odor should render
the air unsatisfactory.
Contact the Compressed Gas Association (1235 Jefferson David
Highway, Arlington, VA 22202 or www.cganet.com) for complete
details on Commodity Specification G-7.1.
For use with PC90 Series Containment
Airline Respirators
WARNING
Before using this product, read and follow all directions and
warnings, including those in the respirator instruction manual.
The respirator’s air source must supply clean, breathable air,
Grade D or better, at all times. The respirator does not purify air
or filter out contaminants.
Connecting the respirator to a line supplying nitrogen or other
harmful gases could cause death or serious injury.
Failure to follow these instructions could result in death or
serious injury.
