Post #3850617

@amro@todon.nl You may find the 60923 cartridge is easier to find at home improvement stores, most of which don't stock 3M's entire product line. The 60923 is the same as the 60921 but dopes the activated charcoal with an alkaline material to neutralize acid fumes. It's a more general purpose filter that might cost a little bit more and you shouldn't need acid gas protection for typical plastic work, but will work just fine if it's all you can get.