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ToxiRAE Pro CO
2
User’s Guide
56
17.4. Filter Replacement
A filter is permanently attached inside the ToxiRAE Pro CO
2
’s top cap, which helps to
keep debris and moisture out. This filter should be inspected periodically, and the cap and
rubber insert should be inspected for damage. If the filter is dirty or the cap shows signs
of damage, replace the entire instrument cap assembly, including the cap and filter (part
number G02-0307-003, package of three).
To replace the cap assembly:
1.
Remove the top cap by unscrewing it:
2.
Discard the cap/filter and replace it with a new one by screwing it on: