Your team's half-masks only protect them if the seal actually holds. This 3M FT-32 bitter solution is the standard for respirator fit testing — the wearer breathes in the aerosol, and if they taste it, the seal is tight. Box of six gives you enough for a full workplace check without running back to reorder. Stop guessing whether that facepiece is doing its job. One breath, one clear answer
| brand | 3M |
| model | FT-32 |
| flavour | Bitter |
| pack_size | Box of 6 |
| category | Education & Craft |
| subcategory | Health & Safety |
| use | Respirator fit testing |