Speaking Diaphragm Assembly

The 3M™ Speaking Diaphragm Assembly FF-400-13 is the replacement assembly for speaking diaphragm used with 3M™ Ultimate FX Full Facepiece Reusable Respirator FF-401, FF-402, FF-403.

3M™ Speaking Diaphragm Assembly FF-400-13 is to be used with compatible products. Replacement part can extend respiratory equipment service life.

Replacement part to use with 3M Ultimate FX Full Facepiece Reusable Respirators FF-401, FF-402, and FF-403 (sold separately)
Maintains original performance standards of facepiece
Replacement assembly for speaking diaphragm
Replaceable part can potentially result in respiratory equipment cost savings