3M FF-400-03 Replacement Lens Assembly – Single Lens For Ultimate FX Full Facepiece Respirators (FF-401, FF-402, FF-403)

About This Product

This is the OEM replacement lens assembly for 3M Ultimate FX full facepiece respirators, specifically the FF-401, FF-402, and FF-403 models.
If your current lens is scratched, fogged, or cracked, swapping it out with this genuine 3M part gets your respirator back to like-new condition.
It’s a single lens unit that installs easily into the facepiece frame.

Made to the same high standards as the original, so you get the same clarity, durability, and protection.
Keeping a spare on hand is a smart move for anyone who uses their respirator regularly—especially in dusty, chemical, or high-particulate environments.
It’s sold by the case, but this listing is for the minimum order quantity, which is one case.

No frills, just the genuine replacement part you need to keep your safety gear in top shape.
If you rely on your 3M respirator for work, this is the lens you want.

This 3M FF-400-03 replacement lens assembly is a genuine OEM part for Ultimate FX full facepiece respirators models FF-401, FF-402, and FF-403.
Replaces scratched or damaged lenses to restore visibility and protection.

Easy to install.

Sold as a single lens assembly.

Essential for maintaining respiratory safety equipment in industrial, construction, or hazardous material environments.