Disposable half mask respirator
Disposable half mask respirator
General Information
- This type relies on the wearer's breathing to pull the air through the filter
- Half masks cover the nose, mouth and chin
- They are supplied in different shapes and sizes
- They can be made with Low efficiency (P1), Medium efficiency (P2) or High efficiency (P3) particle filters
- This RPE is designed for a single shift and should be thrown away at the end of the task, shift or day. However, some newer models may be re-used, marked R on the RPE
- R-marked types: as a practical measure, do not use for more than three days unless advised by the manufacturer
- Some models may have an outlet valve, providing improved comfort for the wearer
- Disposable half-mask rspirators are uncomfortable to wear continuously for more than 1 hour
- They are OK for light work (work activity when seated) and medium work rate (work activity involving sustained hand and arm movements, or similar to brisk walking)
Do's
- Select the right efficiency filter for your substance
- Select the right size mask for each wearer
- Fit-testing for each wearer is required when using this RPE for the first time
- Ensure that wearers check the RPE fits correctly every time, as recommended by the manufacturer
- Fit the straps as recommended
- Train users to use the RPE correctly
Dont's
- Use in oxygen-deficient atmospheres (e.g. confined spaces)
- Use a P1 filter against fume unless recommended by the manufacturer
- Use against gases or solvent vapours
- Store in dirty areas
- Get dirt inside the mask
- Use a damaged respirator - filtering surface, straps or valve
- Make DIY modifications to the RPE
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