作者: Peter C. Magnante
DOI:
关键词: Hazardous waste 、 ALARM 、 Cartridge 、 Environmental engineering 、 Service life 、 Air-purifying respirator 、 Alarm device 、 Respirator 、 Waste management 、 Engineering
摘要: A gas or vapor sensing and alarm device in an air purifying respirator for warning the wearer of hazardous levels gases vapors penetrating through cartridge. An exothermic sensor which can be fitted cartridge adaptor facepiece cavity monitors heat evolved during adsorption into sensor's adsorbent triggers when has reached end its service life.