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1. www.osha.gov › sites › defaultAssigned Protection Factors

   www.osha.gov › sites › default

   Assigned Protection Factors for the Revised Respiratory Protection Standard. Occupational Safety and Health Administration U.S. Department of Labor. OSHA 3352-02. 2009. Original cover Illustrations created by Attiliis & Associates. Contents. Introduction 3. The Audience for this Guide 3. How to Use this Guide 3.

2. multimedia.3m.com › mws › mediaAssigned Protection Factors (APF) for Select 3M Respirators

   multimedia.3m.com › mws › media

   Full facepiece respirator (3M™ Tight-Fitting Powered Air Purifying Respirator systems utilizing 3M™ Powerflow™ or Versaflo™ PAPR TR-600/TR-800 with 3M™ Full Facepiece Respirators and 3M™ Breathing Tubes BT-60 Series)

3. www.draeger.com › Content › DocumentsProtection Factors for Respirator Selection

   www.draeger.com › Content › Documents

   01. Protection Factor. The protection level expected by a certain class of respirators. Or, the level of protection that a specific wearer may achieve. The difference between wearing a specific respirator type and wearing no respirator at all. In other words: Protection Factor = Concentration of test substance outside.

4. multimedia.3m.com › mws › mediaRespirator Selection Guide

   multimedia.3m.com › mws › media

   7. Choose a respirator type with an assigned protection factor (APF) that is higher than the hazard ratio. Assigned protection factors* per OSHA 29 CFR 1910.134 are as follows: Air Purifying Respirators • Half facepiece (filtering facepiece-disposable and reusable): 10 • Full facepiece (with quantitative fit testing): 50

5. www.3m.com › 3M › en_USRespirator Selection | Respiratory Protection | 3M - US

   www.3m.com › 3M › en_US

   • Αποθηκευμένο αντίγραφο

   The 3M Respirator Selection Guide provides respirator selection criteria for particulate hazards and a wide range of chemical compounds. Our free 3M™ Select and Service Life Software can help make selecting the appropriate respirators faster and easier.

6. www.cdc.gov › niosh › docsNIOSH Guide to the Selection and Use of Particulate Respirators

   www.cdc.gov › niosh › docs

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   §The APF (assigned protection factor) is the minimum anticipated level of protection provided by each type of respirator worn in accordance with an adequate respiratory protection program. For example, an APF of 10 means that the respirator should reduce the airborne concentration of a particulate by a factor of 10 (or to 10% of the workplace ...

7. www.3m.com › wps › wcm3M Respirator Selection Guide

   www.3m.com › wps › wcm

   protection afforded by the respirator. Protection Factors The respirator selected must have an assigned protection factor adequate for the particular workplace exposure. Divide the air contaminant concentration by the occupational exposure limit (OEL) to obtain a hazard ratio. Then select a respirator with an assigned protection factor greater than