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Old 01-25-2021, 09:30 AM
LCampbell LCampbell is offline
Join Date: Dec 2018
Location: Columbia, MO
Posts: 30

An idea to add on the above 'put the cartridges in a zip lock bag' remark...

I know chemical levels will determine how quick the active ingredient is used up, but whenever I was putting my cartridges back in the zip lock bag, I'll put a 'tick' mark on the bag with a marker for each hour use..... 25 ticks later, then I would no longer count them usable for hazardous vapor absorption.

I'd still hold onto them for particulate filtering, such as fiberglass sanding work, but not for hazardous fumes.

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