OTS Spectrum Full Face Mask Review: Features, Accessories, Pros & Buying Guide

The OTS Spectrum Full Face Mask has become one of the most popular full-face scuba masks among recreational divers, commercial divers, and public safety professionals. Designed by Ocean Technology Systems (OTS), it offers a comfortable, versatile, and customizable alternative to traditional scuba masks while allowing divers to use their preferred second-stage regulator.

If you’re researching the OTS Spectrum Full Face Mask, this guide covers everything you need to know—including an in-depth OTS Spectrum Full Face Mask review, the best OTS full face mask accessories, performance, pros and cons, and whether it’s the right investment for your diving needs.

What Is the OTS Spectrum Full Face Mask?

The OTS Spectrum Full Face Mask is a lightweight full-face diving mask engineered for scuba diving in cold water, low-visibility environments, recreational diving, and professional applications.

Unlike many full-face masks that require proprietary regulators, the Spectrum is compatible with many standard second-stage regulators, making it a more affordable entry into full-face diving. It also supports optional communication systems and other accessories, allowing divers to expand its capabilities over time.

OTS Spectrum Full Face Mask Review

When evaluating the OTS Spectrum review, several features consistently stand out among professional reviewers and experienced divers.

1. Excellent Comfort and Fit

One of the Spectrum’s biggest strengths is its soft silicone double-face seal.

The flexible skirt adapts well to different face shapes, creating a dry and comfortable seal while reducing pressure points during longer dives. Professional testing has noted that the mask seals well even on smaller faces, though careful donning is important for the best fit.

Benefits

• Comfortable silicone skirt
• Secure five-point harness
• Reduced facial fatigue
• Excellent seal in cold water

2. Easy Equalization

Unlike some full-face masks, the Spectrum allows divers to pinch their nose naturally through the soft internal nose pocket.

This familiar equalization method makes the transition from a conventional mask much easier for new full-face mask users. Multiple reviews highlight the soft nose pocket as one of the mask’s most appreciated features.

3. Breathing Performance

The Spectrum is designed to work with compatible second-stage regulators, giving divers flexibility in choosing their preferred breathing system.

Independent testing found breathing performance to be excellent to very good across different conditions, although some users noticed slight movement of the soft skirt during heavy breathing.

OTS Spectrum Review: Key Features

The OTS Spectrum review wouldn’t be complete without highlighting its most important specifications.

Premium Features

• Tempered glass lens
• Soft silicone double-face seal
• Five-point adjustable head harness
• Low-volume internal design
• Compatible with many standard second-stage regulators
• Optional underwater communications
• Multiple threaded mounting points for accessories
• Durable ABS frame
• Comfortable nose pocket for equalization

These features make the Spectrum suitable for recreational, technical, and professional diving.

OTS Spectrum Full Face Mask

Experience the comfort, safety, and communication advantages of a full-face mask without the expense of a dedicated regulator system. The OTS Spectrum Full-Face Mask from Ocean Technology Systems is an innovative full-face diving mask designed to work with your existing regulator, making professional-level full-face diving more accessible to recreational, technical, public safety, and commercial divers. The Spectrum eliminates the need to bite on a mouthpiece, reducing jaw fatigue and dry mouth while providing exceptional comfort throughout extended dives.

Featuring a comfortable double-seal silicone skirt, a secure five-point head harness, and a large tempered-glass visor for excellent visibility, the Spectrum delivers a reliable and comfortable fit across a wide range of face shapes. The mask is also communication-ready, allowing divers to integrate OTS underwater communication systems for enhanced diver-to-diver and diver-to-surface communications.

Designed and tested for diving depths up to 50 metres and suitable for cold-water environments, the OTS Spectrum Full-Face Mask provides the confidence, warmth, and breathing comfort needed for demanding underwater conditions.

With the Spectrum Full Face Mask, Ocean Technology Systems created the best Full-Face Mask on the market. It allows divers to use their own regulators and eliminates the heavy cost associated with standard FFMs without sacrificing luxury.

Features

• Compatible with many standard scuba regulators
• Eliminates traditional bite-down mouthpiece fatigue
• Comfortable double-seal silicone skirt
• Five-point adjustable head harness for a secure fit
• Large tempered-glass visor for excellent field of vision
• Communication-ready for OTS underwater communication systems
• Tested to EN 250:2014 standards
• Suitable for cold-water diving applications
• Rated for diving depths up to 50 metres
• Durable construction using high-quality engineering materials
• Please note the Spectrum is officially CE certified

Benefits

• Reduces jaw fatigue during long dives
• Prevents dry mouth commonly experienced with conventional regulators
• Enhances diver comfort and warmth in cold-water conditions
• Provides a secure and reliable seal for increased confidence underwater
• Allows clear underwater communications when fitted with OTS communication accessories
• Offers a cost-effective entry into full-face mask diving by utilising your existing regulator
• Improves overall diving experience with natural breathing and full-face protection
• Ideal for recreational, technical, public safety, scientific, and commercial diving applications

Product Specs: Description / Material
Spectrum Skirt – Silicone
Upper / Lower Visor Clamps – Black PPS
Visor – Tempered Glass / Iridium
Strap, Mask – EPDM / Natural Rubber Blend
Buckles / Buckle Locks – Glass-Filled Zytel
Inner Frame – Glass-Filled Zytel

Best OTS Full Face Mask Accessories

One of the biggest advantages of the Spectrum is its expandability. There are numerous OTS full face mask accessories available to enhance functionality.

1. Ambient Breathing Valve (ABV)

The Ambient Breathing Valve allows divers to breathe surface air without consuming cylinder gas before descent.

Benefits include:

• Conserves breathing gas
• Extends dive time
• Improves comfort while waiting at the surface

2. Underwater Communication Systems

The Spectrum is compatible with OTS communication systems, making it a popular option for:

• Public safety divers
• Scientific diving
• Underwater instructors
• Commercial divers

Reliable communication can significantly improve safety and coordination during complex dives.

3. Light Bracket

The optional light bracket enables hands-free illumination during:

• Night dives
• Wreck exploration
• Cave diving
• Low-visibility conditions

4. Camera Mounts

Several accessory options allow divers to mount action cameras for recording underwater adventures.

This feature is particularly attractive for underwater photographers and content creators.

5. Anti-Fog Products

Since users sometimes report lens fogging, anti-fog solutions are among the most recommended accessories for maintaining clear vision throughout a dive. Retailers also list accessory options such as lens cleaners and optical magnifiers alongside the Spectrum.

 

FAQs

Is the OTS Spectrum Full Face Mask good for beginners?

Yes. Thanks to its familiar equalization method and compatibility with standard regulators, many divers find it approachable. However, formal full-face mask training is strongly recommended before diving with any FFM.

What accessories are available for the OTS Spectrum Full Face Mask?

Popular OTS full face mask accessories include:

• Ambient Breathing Valve (ABV)
• Underwater communication systems
• Light brackets
• Camera mounts
• Anti-fog products
• Optical lens accessories

Does the Spectrum work with standard scuba regulators?

Yes. One of its key advantages is compatibility with many standard second-stage regulators, reducing upgrade costs compared with some integrated full-face systems.

Does the mask fog?

It can fog if not properly prepared. Applying an anti-fog solution before each dive generally resolves the issue.

Is the OTS Spectrum worth buying?

For divers seeking a comfortable, customizable, and cost-effective entry into full-face diving, the OTS Spectrum Full Face Mask offers strong value. Independent testing has praised its breathing performance, comfort, and effective seal, making it a highly regarded option in its category.