Asbestos protection idea with bad gas masks, similar to inserting a P3 level respirator pad piece in the inhale valve maybe you can just put on a P3 level foam half face
Elipse® P3 Respirator | GVS
3M 7093 P100 Particulate Filter for Asbestos & Lead - 1/Pair - Diamond Tool
Dräger X-plore® P3 R Bayonet Filters | 2 Waterproof Replacement Particle Filters for Protection against Asbestos, Wood Dust, Metal Dust- Buy Online in Bahamas at bahamas.desertcart.com. ProductId : 48221578.
Asbestos PPE essentials | Armco Asbestos Surveys
3M™ Asbestos/Dust Respirator Kit P2/P3 - CDK Stone
Personal protective equipment (PPE) when working with asbestos | WorkSafe
Buy Dräger X-plore A2 P3 R D Bayonet Filters | 2 Replacement Filter Cartridges suitable for Face Mask Respirators X-plore 3300, 5500 | Protection against Spray Paint, Asbestos, Pesticides Online in Indonesia. B004PTU5GG
BLS 4500 ASBESTOS Pre-mounted respiratory mask set with P3 R filters - online purchase | Euro Industry
Maxisafe Maxiguard Half Face GP Kit - Ipswich Work 'N' Safety
7800 Series Fine Dust Particulate and Asbestos (non friable) – P2/P3 - Moldex
Scott Pro2000 P3 filter - Asbestshop.eu
3M 2091 HEPA P100 Asbestos Particulate Filter 2000 Series - N - Diamond Tool