Open Box Tusa Ceos Mask
In stock — ships from Irvine, CA
Open Box Tusa Ceos Mask - Cobalt Blue / Like New is backordered and will ship as soon as it is back in stock.
Pickup currently unavailable at 23D
Condition Note
- Open Box: Generally unused, returned from a customer, with minor blemishes that are not noticeable. Original packaging may be damaged or missing.
- Like New: May be slightly used but looks almost new, with minor blemishes that are not noticeable. Original packaging may be damaged or missing.
- Very Good: Shows signs of use with a few more blemishes. Original packaging may be damaged or missing.
- Good: Shows more signs of use with noticeable blemishes. Original packaging may be damaged or missing.
- Acceptable: Heavily used with more blemishes. Original packaging may be damaged or missing.
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Regular priceFrom $74.95Unit price
Product Information
Open Box Tusa Ceos Mask offers a low-profile, low-volume two-window design for scuba and recreational diving. It integrates Freedom Technology to improve fit, comfort, and performance, combining advanced mask concepts with a soft, secure seal.
The mask features a dimpled skirt surface with varied silicone thickness and stability ridges, plus a proprietary low-friction fitting line. A Round Edge Skirt helps minimize facial pressure and reduce creasing for a comfortable fit during long dives.
Comfort and ease of use are supported by TUSA’s 3D Mask Strap, which follows the head’s natural curvature, and a Quick-Adjust Buckle System with a low-profile buckle for fast, precise adjustments. These elements contribute to a reliable, user-friendly fit in various diving conditions.
Open Box condition: generally unused, returned from a customer, with minor blemishes (not noticeable after dives). Original packaging may be damaged or missing. This item does not carry a manufacturer warranty.
- Freedom Technology—improves fit and performance for scuba and diving applications
- Low-profile, low-volume two-window design for streamlined comfort
- Round Edge Skirt to reduce pressure and creasing
- 3D Mask Strap for an anatomically contoured, secure fit
- Quick-Adjust Buckle System with a low-profile buckle for easy sizing
- Compatibility—accepts MC-7500 Corrective Lenses and ML-7500S AR/UV lenses
- PRO Version (M-212S) with CrystalView AR/UV lenses
Freedom Technology is a set of technologies to enhance fit and performance exclusive to TUSA. Freedom model masks feature a dimpled skirt surface with varied silicone thicknesses and stability ridges in addition to a proprietary low-friction skirt surface on the fitting line.
TUSA’s patented 3D Strap is a true three-dimensional design that snugly fits against the head’s natural curvature. The 3D strap offers unprecedented comfort and fit, unlike standard flat mask straps.
The Quick-Adjust Buckle System incorporates a newly-designed low-profile buckle. The result is a compact, lightweight, technologically advanced mask design that can be easily and quickly adjusted for a perfect fit.
TUSA's Round Edge Skirt features a proprietary round edge cross-sectionally shaped skirt. This rounded edge results in a soft fit that suppresses pressure and reduces creasing left on the face. The "planar fit, instead of linear fit" silicone skirt maintains great fit and unprecedented comfort.
⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Frequently Asked Questions
How do I know if a dive mask fits?
Hold the mask against your face without using the strap, look slightly down, and inhale gently through your nose; a well-fitting mask holds itself in place for a few seconds. Check that the skirt seals all the way around without digging into the nose bridge, and that there are no gaps at the temples or above the upper lip. A mustache can break the seal even on an otherwise well-fitting mask.
Why does my brand new mask fog no matter what I do?
New masks carry a residue on the inside of the lens left over from manufacturing, and defog cannot stick to it, so the mask fogs until that film is removed. The standard pre-treatment is to scrub the inside of the lens with a mild abrasive cleaner or a dedicated mask prep and rinse thoroughly, repeating if it still fogs. Follow the mask manufacturer's instructions, particularly on coated or mirrored lenses.
How do I stop my dive mask from fogging?
Apply defog to a dry lens before the dive, spread it over the whole inner surface, then rinse briefly with water just before you put the mask on. Fogging happens when warm moist air meets a cooler lens, so a clean lens with a thin surfactant film is the fix. Keep sunscreen off your fingers before handling the inside of the lens, because that film fogs badly and is hard to remove.
Why do dive masks need tempered glass?
Dive mask lenses should be tempered safety glass because it resists scratching and, if it ever does break, fractures into blunt granules rather than sharp shards next to your eyes. Untempered or plastic lenses scratch easily and can craze, which is why tempered glass is standard on scuba masks. Look for the tempered marking etched on the lens.
Can I get a dive mask with my prescription?
Yes, prescription options are widely available, usually as masks fitted with stock corrective lenses in set diopter steps, custom-ground lenses installed in compatible frames, or bonded lenses added to an existing lens. Not every mask frame accepts replacement lenses, so check compatibility before you buy the frame. An optician or a dive shop can help translate your glasses prescription into a mask lens choice.
How should I care for and store a dive mask?
Rinse it in fresh water after each dive day and let it dry away from direct sunlight, avoiding anything abrasive on the treated inner lens. Store it in a rigid mask box so the skirt is never compressed or creased, since a set crease in the skirt is a permanent leak. Keep silicone skirts away from petroleum products and prolonged UV, both of which yellow and harden them.
How tight should a dive mask strap be?
Not tight at all in the usual sense, because over-tightening is the most common cause of both leaks and headaches; a hard-pulled strap distorts the skirt and lifts the seal off your face. The strap should sit high on the back of your head and be just firm enough to keep the mask from shifting. If you need it cranked down to stop a leak, the mask does not fit your face.
