231-01-30U includes:* Air-Mate™ PAPR Unit 520-03-63R01* Battery Pack 007-00-15R01* HEPA Filter 451-02-01R01* Airflow Indicator 021-14-00R01* Vinyl Belt GVP-117 Specifications:Weight* PAPR: Approx. 1.1 lbs.* Battery pack: Approx. 1.7 lbs.Battery Pack* Rechargeable NiCd. Up to 8 hours per charge.These respirators help reduce exposure to certain airborne contaminants. Use of 3M™ Positive Pressure Respirators by untrained or unqualified persons, or use not in accordance with the instructions, may adversely affect product performance and result in sickness or death. Positive pressure respirators are to be used only by qualified persons who are properly trained in their use and maintenance, and only in accordance with their operating and maintenance manuals. Each person using these products must first read and understand the operator's manual. See supervisor for assistance or call 3M OH&ESD Technical Service in U.S.A. at 1-800-243-4630. In Canada, call 1-800-267-4414. Important: Before using these respirators, you must determine the following: 1. If there is sufficient oxygen present. 2. The type of contaminant(s) for which the respirator is being selected. 3. The concentration level of contaminant(s). 4. Whether the respirator can be properly fitted on the wearer's face. All respirator instructions, warnings and use and time limitations must also be read and understood by the wearer before use. Before use of these respirators, a written respiratory protection program must be implemented, meeting all the requirements of OSHA 29 CFR 1910.134, including training, fit testing and medical evaluation.