Nancy, I would reccomend a fume trap that has both the foam filter and the activative charcoal filter.The foam filter can be removed to cleaned ( rinse with water and dry before replacing). Think of the foam filter removing the big impurities and the carbon filter removing smaller impurities. We carry the Portable Fume Trap with a charcoal filter and the Hakko Fume Trap with a foam and carbon filter. Thanks for your question, Steena @ Delphi.