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The MSA Safety 78584 inhalation valve is a replacement component for Comfo Classic half-mask and Ultra Twin full face respirators. It serves as an APR system inhalation valve and is NIOSH approved. The part fits multiple MSA manufacturer part numbers and is provided as an individual spare for respirator maintenance and repair, supporting proper airflow and valve function in protected breathing systems.
NIOSH-approved replacement inhalation valve MPN 78584 for MSA Comfo Classic and Ultra-Twin respirators; fits multiple MSA part numbers.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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