The Breather Box™
THE INDUSTRY'S STANDARD IN HIGH
PERFORMANCE PORTABLE GRADE-D BREATHING AIR FILTRATION SYSTEMS
|
These portable Grade-D filtration systems are designed to provide breathing air for a specific number of workers. The system filters inlet air to provide respirator users Grade-D quality air. The first stage filters bulk water and particulate, second stage coalescing filter eliminates atomized oils, mists, and ultra-fine particulates, third stage removes organic vapors and odors. Filter change indicators are standard on all three stages. Filter efficiency is 99.99% @ .01 microns. A built-in carbon monoxide monitor operates on 9-volt DC, dual 8 - 16 volt DC or 115 VAC for continuous detection. An external alarm and light signals the worker of high CO content. Point-of-Attachment (POA) boxes can extend respirator usage beyond 300 feet. All Breather Box™ models are designed to be used in the closed position to prevent internal contamination. All portable and fixed breathing air filtration systems meet or exceed U.S. and Canadian breathing air standards. Federal
OSHA 29 CFR 1910.134 |
![]() Model BB50-CO ![]() ALL PORTABLE AND FIXED BREATHING AIR FILTRATION SYSTEMS MEET OR EXCEED OSHA 1910.134 AND CANADIAN Z180.1 BREATHING AIR STANDARDS |
Download User Manual
Basic Elements of a Breathing Air System Breathing Air Quality Position Statement Auto-Air Feature
|
APPROVED
INTRINSICALLY SAFE BREATHER BOX™ MODELS ARE AVAILABLE. THESE UNITS ARE
APPROVED FOR CLASS I, DIVISION I, GROUPS C AND D ENVIRONMENTS. UNITS ARE
"DC" (9-VOLT) OPERATION ONLY.
|
SPECIFICATIONS
·1st Stage Filter
·2nd Stage Filter
·3rd
Stage Filter ·2-year Full Warranty on Sensor and Monitor ·Automatic Drains on 1st and 2nd Stage ·In-Line Carbon Monoxide Monitor ·Optional CO/O2 Monitor
·Optional
·Electro-Chemical Sensor for Specific 115 Volt AC
·Filter Change Indicator on All 3
filters ·125 psi Safety Relief Valve ·Solid Aluminum Block Manifold ·0-160 psi Pressure Gauge
·Flowmeter to Verify
·External Case Mounted
·Remote DC Alarm Jack with Cover Cap ·Over 40 Custom Variations Available |
![]() |
| Back to top ▲ |
Typical Elements of a Breathing Air System

COMPRESSOR GRADE-D FILTRATION AIR DISTRIBUTION (POA) RESPIRATOR
The above pictured items make up a typical Grade-D breathing air system. Depending on the number of workers to be served by the system and whether the system needs to be portable or a fixed plant system, the size and complexity of the system may change. However, the basic elements above must be present. In order to properly size the breathing air system, it is absolutely essential that the user’s first decision is to decide the type and quantity of airline respirator(s) to be used. A quick recap of the airline respirator types and their required flow and pressure requirements is essential. All airline respirators are referred to by NIOSH as Type-C or Type-CE respirators. NIOSH approved CE respirators are designed for abrasive blasting but still require the same air flow as Type-C respirators.
BREATHING AIR QUALITY POSITION STATEMENT
The responsibility for the quality of breathing air rests with the user.
Compliance with federal, state, or local regulations is the responsibility of
the user, and this recommendation does not supersede any existing rules,
regulations, or laws which may apply. Breathing air filtration products meet or
exceed CGA Grade-D specifications for air quality as adopted by Federal OSHA.
Compressor air quality standards meet or exceed OSHA 1910.134 requirements. When
the components are used in accordance with the manufacturer's instructions and
recommendations, the "system" meets or exceeds federal regulations presently in
force. It is incumbent upon the user to comply with any changes in the
regulations or law which may occur in future situations.
The air supply compressor should be located in a safe, clean ambient air
environment. This "safe" location should be tested periodically using proper
instruments to ensure clean ambient air quality on a consistent basis. Total
system Grade-D air quality should be tested at initial start up. If the
compressor is moved, retesting air quality is recommended. Should the location
or environment significantly change, the air quality should be retested. The
compressor filters and oil level should be checked daily and changed when
contaminated or when the maximum number of "run" hours is achieved.
This series of air filtration units should be used according to the
manufacturer's recommendations. The standard filtration package is not
explosion-proof and should be located in a non-explosive environment. (An
intrinsically safe model is available). The carbon monoxide monitor should
be calibrated monthly or if the accuracy of the monitor is in question. System
air quality should be tested for, but not limited to, the following Grade-D air
components:
CO - Carbon Monoxide
O2 - Oxygen
CO2 - Carbon Dioxide
H2O - Water (Moisture Content)
Hydrocarbons (Oil Mist)
Total Particulates
The maximum allowable level of these air quality components varies depending on
Grade-D or E requirements.
Our Breathing Air compressors and filtration systems meet all of the following
federal
specifications when used and serviced in accordance with our instructions:
Federal
OSHA 29 CFR 1910.134
"Compressor Operations for Breathing Air"
Army Corps of Engineers EM385-1-1,
paragraph 07b-11-4,
"Compressed Breathing Air"
|
ORDERING INFORMATION |
||
|
***DON'T FORGET TO ORDER YOUR CO MONITOR CALIBRATION KIT*** |
||
|
Standard Portable Models |
||
| BB15-CO | Standard Breather Box™ - 15 cfm with 1 respirator coupling | |
| BB30-CO | Standard Breather Box™ - 30 cfm with 2 respirator couplings | |
| BB30-CO3 | Standard Breather Box™ - 30 cfm with 3 respirator couplings | |
| BB50-CO | Standard Breather Box™ - 50 cfm with 4 respirator couplings | |
| BB75-CO | Standard Breather Box™ - 75 cfm with 6 respirator couplings | |
| BB100-CO | Standard Breather Box™ - 100 cfm with 4 respirator couplings | |
| BB100-CO8 | Standard Breather Box™ - 100 cfm with 8 respirator couplings | |
| BB150-CO | Breather Box™ - 150 cfm supplied with 3 each 1/2" sockets, no regulator | |
| Carbon Monoxide & Oxygen Monitoring | ||
| BB50-COO2 | Standard Breather Box™ - 50 cfm with 4
respirator couplings and Carbon Monoxide & Oxygen Monitoring |
|
| BB100-COO2 | Standard Breather Box™ - 100 cfm with 4
respirator couplings and Carbon Monoxide & Oxygen Monitoring Note: All Models available with CO/O2 monitor |
|
| Independent Regulators | ||
| BB50-CO4R | Standard Breather Box™ - 50 cfm with 4
independent regulators, pressure gauges and respiratory couplings |
|
| BB100-CO4R | Standard Breather Box™ - 100 cfm with 4
independent regulators, pressure gauges and respiratory couplings |
|
|
Intrinsically Safe Models
|
||
| BB30-COIS | Intrinsically Safe Breather Box™ - 30 cfm with 2 respiratory couplings | |
| BB50-COIS | Intrinsically Safe Breather Box™ - 50 cfm with 4 respiratory couplings | |
| BB100-COIS | Intrinsically Safe Breather Box™ - 100 cfm with 4 respiratory couplings | |
| CALIBRATION KIT | |
| BBK-20 | Calibration Kit for CO monitor 17 liter - 20ppm CO gas | |
| BBK-10 | Calibration Kit for CO monitor 17 liter - 10ppm for INTERNATIONAL calibration |