<p style="font-size: 12px;color:#aaa;">版权引用：<a href="https://www.behance.net/gallery/72221383/THE-PERISCOPIC-MASK-SNORKELING-PRODUCT-DESIGN"><span style="font-size: 12px;color:black;">“The Periscopic Mask – is an upgrade from the wide variety of existing leisure full-face masks to a new class device of adventure, sport, and rescue. We shifted the tube to the left and inserted two mirrors – in the top of the tube and on the glass inside the mask above the left eye. We made more than a dozen modifications to fix the safety errors that are in ALL other masks created before the Periscopic Mask. We added to the mask an adapter for a mini air-tank made it suitable for a speed.Our mask operates in three distinct modes:Snorkeling – no air tank, depth up to 20 feet;Adjacent – air tank attached, depth up to 3 feet;Diving – for certified divers, air tank attached, depth up to 33 feet. ”</span> </a>由 <a href=""><span style="font-size: 12px;color:black;">Qvarta Studio,Max Mysechko,Artemiy Drobyazko,ROMAN PLISKOVSKYI</span></a> 授权许可 <span><a href="https://creativecommons.org/licenses/by-nc-nd/4.0/deed.zh" target="_blank" style="font-size: 12px;color:black;">Attribution-NoDerivs-NonCommercial 4.0 International<img src="" style="display: inline-block;height: 16px;width: auto;"></a></span></p>