3M™ Versaflo™ S-403 Respiratory Hood (S/M and L)
The 3M™ Versaflo™ S-403 is a versatile respiratory hood for the Versaflo powered and supplied-air systems. It offers respiratory, head and face protection in a lightweight, comfortable design available in two sizes to suit different users.
Product overview
The S-403 connects to 3M Versaflo TR-300, TR-600 and supplied-air systems via the standard breathing tube. Filtered air flows into the hood and across the face for a comfortable, positive-pressure environment, while the clear visor provides good visibility. It is offered in S/M (S-403S) and L (S-403L) sizes.
Key features and benefits
- Respiratory and face protection: covers the breathing zone and face in one hood.
- Two sizes: S-403S (small/medium) and S-403L (large) for a better fit.
- Lightweight and comfortable: well suited to extended wear.
- Versaflo compatible: works with TR-300, TR-600 and supplied-air systems.
Typical applications
The S-403 suits pharmaceutical and laboratory work, paint spraying, chemical handling, food processing and manufacturing where comfortable respiratory and face protection is needed.
Technical specifications
| Model | 3M™ Versaflo™ S-403S / S-403L |
|---|---|
| Type | Respiratory hood (PAPR / supplied-air headtop) |
| Sizes | S-403S (small/medium), S-403L (large) |
| Compatibility | 3M Versaflo TR-300, TR-600 and supplied-air systems |
Why buy from Techmaster Electronics
Techmaster Electronics is an authorised supplier of 3M personal protective equipment in Vietnam. We provide genuine Versaflo headtops, advice on system compatibility and sizing, and responsive after-sales support nationwide.
Frequently asked questions
Which systems does the S-403 work with?
It connects to 3M Versaflo TR-300 and TR-600 powered air systems and compatible supplied-air systems via the standard breathing tube.
What is the difference between S-403S and S-403L?
S-403S is the small/medium size and S-403L is the large size; choose based on head and face dimensions.
Is the hood reusable?
Yes. The hood is reusable; the inner shroud, visor and other consumable parts can be replaced as needed.


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