The charcoal is packed into an IKEA garbage can around a prefilter made from a canister-style automotive air cleaner – [ZbLab] uses a Filtron filter that crosses to the more commonly available ...
Charcoal: Primarily used to absorb cooking odors and other particles to recirculate air. While every microwave has its own filter, the location may be different depending on your model.
then activated charcoal cab air filters might be a solution. A seed corn company in my area that sprays herbicides or pesticides all summer long had problems with its sprayer operators complaining ...