Respirator User with Breathing Air from Independent Sources of the Ambient Atmosphere
*Corresponding Author:Received Date: Oct 30, 2023 / Published Date: Nov 29, 2023
Citation: Yuan S (2023) Respirator User with Breathing Air from Independent Sources of the Ambient Atmosphere. J Respir Med 5: 191.DOI: 10.4172/jrm.1000191
Copyright: 漏 2023 Yuan S. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
The Maximum Use Concentrations for respirators is calculated by multiplying the Assigned Protection Factors for the respirator by the permissible exposure limit. The Maximum Use Concentrations is the upper limit at which the class of respirator is expected to provide protection. Whenever the exposures approach the Maximum Use Concentrations, then the employer should select the next higher class of respirators for the employees. Employers must not apply Maximum Use Concentrations to conditions that are immediately dangerous to life or health, instead, they must
use respirators listed for immediately dangerous to life or health conditions of this standard. When the calculated Maximum Use Concentrations exceeds the immediately dangerous to life or health level for hazardous substances or the performance limits of the cartridge or canister, then employers must set the maximum Use Concentrations at that lower limit
