This audiobook is a study guide to prepare for the Respirator Fit Test CNC method exam. It presents more than hundred questions and answers relating to human respiratory system and defence mechanisms, health effects of airborne contaminants, respiratory hazards in the workplace, general respiratory fit testing and respiratory selection requirements, and a sample script to prepare for the submission of a video demonstrating respiratory fit testing by the CNC (Condensation Nuclei Counter) method.

Respirator fit testing is a process used to determine whether a particular respiratory protective equipment (RPE) fits an individual properly and provides an adequate seal to protect against hazardous substances. Fit testing is required for tight-fitting respirators, from disposable filtering facepieces to reusable full-face respirators, including some respirators that typically operate in positive pressure mode.

There are several methods that can be used for respirator fit testing, including the CNC (Condensation Nuclei Counter) method. The CNC method involves measuring the particulate concentration inside the respirator while the user is wearing it and performing a series of exercises or movements to simulate the physical demands of the job. If the ratio between the air concentration inside the respirator and outside of the respirator meets the respiratory protection standard it is considered to have a good fit.

To prepare for the RESP-FIT CNC method exam, this book provides the listener the principles and procedures of respirator fit testing, including the CNC method. This includes excerpts from Australian and International Standards and guidelines and learning about the various types of RPE and their specific fit testing requirements. The listener should also become familiar with the equipment and procedures used in fit testing, as well as the potential risks and limitations of the CNC method.

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ספר מוקלט : 22 בפברואר 2023