Absent such testing, all other PAPRs and SARs with helmets/hoods are to be treated as loose-fitting facepiece respirators, and receive an APF of 25 . Note 5 These APFs do not apply to respirators used solely for escape.

Assigned Protection Factor (APF) means the work-place level of respiratory protection that a respirator or class of respirators is expected to provide to em-ployees when the employer implements a continu-ing, effective respiratory protection program as specified by this section.

Manufacturer must demonstrate APF of 1000, otherwise use APF of 25. Fu ll facepiece PAPR with HE filters for exposure to asbestos. All statements, technical information and recommendations contained herein are based on data we believe to be reliable, but the accuracy or completeness thereof is not guaranteed.

2024年11月5日 · Assigned Protection Factor (APF) is a crucial concept in workplace safety, especially regarding respiratory protection. In environments where airborne contaminants or hazardous substances are present, understanding APFs helps select the right respirator, safeguard workers’ health, and ensure compliance with occupational safety standards.

§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 ...

APF的全称是（AnnualPerformance Factor），就是 全年能源消耗率，主要用来考量空调在全年运转时的节能性情况，计算公式如下↓↓↓. 其中，在耗电量相同的情况下，APF值越高，能源转换率越高，相应的空调更加节能省电。 http://el.bbqk.com/5birk/0.html (二维码自动识别) APF小贴士 ：2013年10月1日，国家对 变频空调 能效等级实施新标准，市场准入门槛也由5级提升至3级。 同时，变频空调能效新标准引入了APF， APF考核的是全年的能耗水平，对空调性能的评估更加 …

(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus

Loose-fitting PAPRs have an APF of 25. Loose-fitting PAPRs with a helmet or hood can have an APF up to 1,000 if supported by manufacturer-supplied test evidence. References Occupational Safety and Health Administration (OSHA) CFR 1910.134 https://www. osha.gov/pls/oshaweb/owadisp.show_document?p_table=standards&p_id=12716

5 - APF = 25 for all approved PAPR; and APF = 1000 only for those approved respirators, that have been further tested in the workplace and there have shown high performance (WPF > 1000). The use of the APFs when selecting respirators for known workplace conditions

2017年10月19日 · This level of performance can best be demonstrated by performing a WPF or SWPF study or equivalent testing. Absent such testing, all other PAPRs and SARs with helmets/hoods are to be treated as loose-fitting facepiece respirators, and receive an APF of 25. These APFs do not apply to respirators used solely for escape.