主要呼吸防护用品类型

Major Types of RespiratorsAir-purifying respirators, which remove contaminants from the air.

Half mask/Dust mask APF=10 Needs to be fit tested	Half mask (Elastomeric) APF=10 Needs to be fit tested	Full facepiece (Elastomeric) APF=50 Needs to be fit tested
Loose-Fitting Powered Air-Purifying Respirator (PAPR) APF= 25	Hood PoweredAir-Purifying Respirator (PAPR) APF= 25

Atmosphere supplying respirators, which provide clean air from an uncontaminated source.

Full Facepiece Supplied-Air Respirator (SAR) with an auxiliary Escape Bottle APF=1,000 APF = 10,000 (if used in “escape” mode) Needs to be fit tested	Full Facepiece Abrasive Blasting Continuous Flow APF=1,000 Needs to be fit tested
Full Facepiece Self Contained Breathing Apparatus (SCBA) Pressure demand mode is APF=10,000 Needs to be fit tested

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这个好厉害