You want this: https://www.amazon.com/gp/product/B008MCUT86/ref=od_aui_detailpages00?ie=UTF8&psc=1 https://www.amazon.com/gp/product/B008MCUT86/ref=od_aui_deta.

You want this: https://www.amazon.com/gp/product/B008MCUT86/ref=od_aui_detailpages00?ie=UTF8&psc=1 https://www.amazon.com/gp/product/B008MCUT86/ref=od_aui_deta... And the filters: https://www.amazon.com/gp/product/B0009XYN7O/ref=od_aui_detailpages00?ie=UTF8&psc=1 https://www.amazon.com/gp/product/B0009XYN7O/ref=od_aui_deta... P100 (P for oil Proof, 100 for reduces particulates by 99.97%) filters are the best you can get[0]. N95 (N for not oil resistant) filters will also work for smoke[1], but they will get clogged in heavy-smoke environments quicker, so P filters are recommended [2 (filter selection flowchart)]. Like others have said, being inside is safer, and these filters get expensive. [0]https://www.cdc.gov/niosh/docs/96-101 https://www.cdc.gov/niosh/docs/96-101 [1]https://multimedia.3m.com/mws/media/477874O/wildfires-cleanup-activities-disposable-respirator-use.pdf https://multimedia.3m.com/mws/media/477874O/wildfires-cleanu... [2]https://www.cdc.gov/niosh/docs/96-101/images/96-101.gif https://www.cdc.gov/niosh/docs/96-101/images/96-101.gif