# AirSep Corporation — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 12-0199
- **title:** AirSep Corporation — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2012-09-20
- **effective on:** Not available
- **summary:** 12-0199 response to AirSep Corporation concerning 173.185, 175.10.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-12-0199.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-12-0199.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-12-0199
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretations/2012/120199.pdf
**body:**

<<<PAGE 1>>>

U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
1200 New Jersey Avenue SE
Washtngton. DC 20590
SEP 2 0 2012
Richard W. Boerdner
Production Manager- POC
AirSep Corporation
401 Creekside Drive
Buffalo, New York 14228-2085
Ref. No. 12-0199
Dear Mr. Boerdner:
This responds to your September 5, 2012letter regarding the applicability of the Hazardous
Materials Regulations (HMR; 49 CFR Parts 1 00-180) to a portable oxygen concentrator your
company manufactures and is known by the trade name FreeStyle 5. You ask whether this device
is regulated as a hazardous material under the HMR.
You state the FreeStyle 5 is a device that separates oxygen from ambient air through a process
called Pressure Swing Absorption (PSA). The maximum operating pressure of the oxygen exerted
within the device is less than 200 kPa (gauge) at 20 °C. The device can be powered by multiple
power sources, including AC or DC power and a rechargeable 4.8 Ah, 71.04 Wh, lithium ion
battery pack. The lithium ion cells and battery pack have been tested pursuant to Sub-section 38.3
ofthe United Nations Manual of Tests and Criteria and are packaged in a manner to prevent short
circuits when offered for transportation or are carried onboard passenger-carrying aircraft.
Based on the information provided, the oxygen in the FreeStyle 5 is not subject to the HMR as a
Division 2.2 non-flammable gas. Moreover, it is the opinion of this Office that the FreeStyle 5
device and the lithium ion batteries contained in the device appear to conform to 49 CFR
172.1 02( c)( 1 ), Special provision 188 (SP 188), for the transportation of small lithium cells and
batteries. Thus, provided the conditions in SP 188 continue to be met, the FreeStyle 5 is not subject
to any other requirements in the HMR.
Although the exception in 49 CFR 175.1 O(a)(18) would apply to a passenger transporting a lithium
battery-powered portable oxygen concentrator, the approval of the Federal Aviation Administration
(FAA) is required before it may be operated onboard an aircraft.
I trust this satisfies your inquiry. Please contact us if we can be of further assistance.
Sincerely,
T. Glenn Foster
Chief, Regulatory Review and Reinvention Branch
Standards and Rulemaking Division

<<<PAGE 2>>>

Industrial & Medical Air Separation Equipment
AirSep Corporation
401 Creekside Drive
Buffalo, New York 14228-2085
(716) 691-0202
Fax (716) 691-4141
September 5, 2012
Mr. Charles Betts
U.S. DOT
PHMSA Office of Hazardous Materials Standards
Attention: PHH-1 0
East Building
1200 New Jersey Avenue, SE.
Washington, DC 20590-0001
Subject: Formal Letter of Interpretation
Dear, Mr. Betts
In accordance with 49 CFR 173.115, after review of this section of the CFR it is
our interpretation that our FreeStyle 5 portable oxygen concentrator manufactured by
AirSep Corporation in Buffalo New York is exempt as hazardous materials. However we
would like your offices concurrence to our interpretation.
Our complete contact Information is as follows:
AirSep Corporation
401 Creekside Drive
Buffalo, New York 14228
Attn: Richard W. Boerdner- Production Manager - POC
(716) 691-0202 ext. 365
rboerdner@airseQ. com
The device for which an exemption is being considered is a pmiable oxygen
concentrator known by the trade name of FreeStyle 5. People who have a medical
condition that requires them to receive supplemental oxygen therapy use this device as a
source of oxygen. The FreeStyle 5 portable oxygen concentrator separates oxygen from
ambient air through a process called Pressure Swing Adsorption (PSA). This portable
oxygen concentrator uses oxygen conserving technology. The systems maximum
operating pressure does not exceed 200 kPa gauge (29.0 psig/43.8 psia) at 20° C (68° F).
The device uses multiple power sources, including AC or DC power and rechargeable
lithium ion battery which is a 4.8 Ah, 71.04 Wh battery pack. The lithium ion cells and
battery pack are compliant to the United Nations Manual of Tests and Criteria and is
packaged in a manner to prevent short circuits when offered for transport or canied on
board passenger aircraft.

<<<PAGE 3>>>

Page2
AirSep Corporation requests your office concurrence that our FreeStyle 5 is
exempt from section 17 5.10 paragraph A 18 which allows a certificate holder to allow
passengers to carry and operate such devices provided a number of conditions are met.
AirSep Corporation is not a certificate holder however we do have procedures in place to
ensure the safety and effectiveness of the FreeStyle 5. These include the requirements of
the FDA's GMP (Good Manufacturing Practices), International standards IEC 60601-1
General requirements for safety for Medical equipment, and IEC 60601-1-2 for
Electromagnetic compatibility requirements and tests for medical equipment. In addition
the AirSep Quality Management System is approved as being compliant with the
requirements ofiS09001 :2008 and ISO 9000:13485 guideline with no exclusions.
I look forward to your review and input on exemption of this product. If you
should need any more information please feel free to contact me.
Sincerely,
Richard W. Boerdner
Production Manager - POC
AirSep Corporation
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