Face Mask Filters
If your RPE has removable face mask filters, then it is essential you replace them when required to ensure you are getting the proper levels of protection. These filters can also be used to change the level of filtration that your mask offers; for example, you may want to switch to a filter with activated carbon if you are doing a job with obnoxious odours. How often you should replace your filters depends on how saturated the environment is and how long you use them for.
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