Respiratory Protection

Respiratory Protection

It should be taken into account that respiratory protection is falling into category III (protection against mortal danger) according to Personal Protective Equipment Directive 89/686/EEC. Very careful risk assessment should be made prior to selecting the right type of respiratory protection.
Attention should be given to the following main aspects:
OEL - Occupational Exposure Limit (is an upper limit on the acceptable concentration of a hazardous substance in workplace air for a particular material or class of materials)
TWA - 8 hours Time Weighted Average (it is used as the average exposure to a contaminant to which workers may be exposed without adverse effect over a period, such as in an 8-hour day or 40-hour week (an average work shift). They are usually expressed in units of ppm (volume/volume) or mg/m3) STEL - Short-Term Exposure Limit (is a limit value above which exposure to a substance should not occur and usually relates to a 15 minute reference period The aim of a STEL is to prevent adverse health effects and other unwanted effects due to peak exposure that may not be controlled by the application of an 8 hour TWA limit)
After air monitoring the Measured Exposure Level should be compared to Occupational Exposure Limit. Measured exposure level should be divided by OEL to get a Respiratory Hazard Level.
Based on calculations and situation appropriate Respirator with greater APF (Assigned Protection Factor) should be selected.  

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Metal fume respirator 3M 9332 FFP3 (valved)

3M™ Reusable Half Face Mask Respirator 7502

Particulate Filter 3M™ 5935  P3 R

3M™ fit test solution Bitter FT-32, 55ml

3M™ Aura™ Health Care Particulate Respirator 1883+ with shrouded valve, 15 pcs/box

Comfo Classic Half-Mask Respirator 808074

Filter retainer 3M™ 501

3M™ sensitivity solution Bitter FT-31, 55ml

Dust/mist/fumes valved respirator UVEX Silv-air classic 3210 FFP2

Half face respirator 3M 4279 FFABEK1P3

Filter 6099 ABEK2P3R (for 3M 6000 series respirators)

Respiratorun üzə uyğunluğunu yoxlayan dəst 3M™ Bitter FT-30, 1 dəst/qutu

Dust/mist/fumes valved respirator UVEX Silv-air classic 3310 FFP3

Half face respirator 3M 4277 FFABE1P3

Filter 6096 A1HgP3R (for 3M 6000 & 7000 series respirators)

Dust/Mist valved Respirator 3M 9322 FFP2, 10 pcs/box

Half face respirator 3M 4255 FFA2P3D

Filter 6075 A1 + Formaldehyde (for 3M 6000 & 7000 series respirators)

Welding fume valved Respirator 3M 9925

Half face respirator 3M 4251 FFA1P2D