TUSA M-212 Freedom Ceos dive mask
The TUSA M-212 Freedom Ceos combines a compact twin-lens design with a soft silicone skirt and straightforward strap adjustment. Its low-profile frame keeps the mask close to the face, while the teardrop-shaped windows provide a clear view of your surroundings and equipment.
Comfort and adjustment
TUSA’s Freedom Technology uses different silicone thicknesses, a dimpled skirt surface and stability ridges to balance flexibility with support. The rounded skirt edge and contoured 3D strap help distribute contact around the face and head. Skirt-mounted quick-adjust buckles let you fine-tune strap tension without pulling the strap excessively tight.
Optional corrective lenses
The Ceos accepts compatible TUSA MC-7500 corrective lenses, with full negative and full positive options, plus BF-7500 gauge-reader lenses. Corrective lenses are optional and are not included with the standard mask. Choose the appropriate lens configuration on our dedicated prescription mask listing or contact the shop for help matching compatible lenses.
Technical specifications
| Model | TUSA M-212 Freedom Ceos |
|---|---|
| Lens layout | Two-window, teardrop design |
| Lens material | Tempered glass |
| Skirt | Silicone with Freedom Technology and rounded edge |
| Strap and buckles | Adjustable silicone 3D anatomical split strap; skirt-mounted quick-adjust buckles |
| Internal volume | 180 cc |
| Frame dimensions | 72 × 157 mm |
| Fitting dimensions | 113 × 130 mm |
| Mask weight | 184 g |
| Corrective-lens compatibility | MC-7500 negative / positive lenses and BF-7500 gauge-reader lenses; sold separately |
Strap comfort and adjustment
The contoured 3D silicone strap follows the curve of the back of your head. Its split shape spreads contact over a wider area, helping the mask stay comfortably in position with light strap tension.
Fit guidance
Dimensions help you compare masks, but face shape determines the seal. Check comfortable contact around your forehead and cheeks, room around your nose and clearance between your face and the frame. Our Hallam team can help you compare the Ceos with other adult masks.
Mask fit and specifications
| Face-fit profile | Medium (TUSA 2026 skirt-fit guide) |
|---|
The fit classification follows TUSA’s 2026 skirt-fit guide. Check the seal, brow clearance and nose comfort on your own face; the fit label is a starting point.
Care and storage
Rinse your mask with fresh water after each dive or snorkel, flushing salt and sand from the buckles before adjusting them. Let it dry in the shade, then store it in a protective case away from heat, direct sunlight and coloured rubber gear that can stain the silicone.
For cleaning, use a diluted neutral cleaner suitable for masks and rinse it away completely. Avoid strong chemicals, abrasive scrubbing and flame treatment. Check the skirt, strap and buckles for damage before use.







































