m3 gas mask history for Dummies
The bottom line is, that the Hollis M1 Frameless Mask is actually a leading-of-the-line option for divers on the lookout for Increased visibility and comfort of their masks. Its frameless layout, low inside quantity, and light-weight Develop make it a wonderful choice for each professional and beginner divers.The Hollis M1 is a frameless diving mas