Kayak Diving Is The Hot New Trend. Hook Up Our All In One System To Your Tank, Drop It On Board Your Kayak, And Dive The Reef For Hours. This Package Includes A Full Face Mask And Is Perfect For Commercial And Cold Water Diving. Regulator Mouthpiece Fits Right Inside The Mask. OTS Spectrum Full-Face Mask is tested to a maximum diving depth of 50m according to EN 250:2014** OTS Spectrum Full-Face Mask is designed for water temperatures below 10°C and is suitable for cold-water diving applications. Ultimately, cold water performance is dictated by 2nd stage regulator being used. OTS Spectrum Full-Face Mask is tested for diving applications with breathing air according to EN12021. OTS Spectrum Full-Face Mask has been tested according to the European standard EN 250:2014** **EN250:2014 refers to the 2014 European Standard for Respiratory equipment – Open Circuit Self-Contained Air Diving Apparatus. **Please note the Spectrum is pending official CE Certification