How to Choose the Difference Between Swimming Goggles and Diving Goggles
The difference between goggles and goggles
The difference between swimming goggles and diving goggles, swimming goggles and diving goggles structure and principle, scope of use, methods are not the same.
1. The diving goggles have a device for sealing nostril ventilation.
2. The sealing layout of diving goggles is huge, and it is important to guarantee air and water tightness.
3, the use of scope and cover parts of the difference: the scope of the use of goggles can be in the water and on the water, and the swimming goggles can only be used on the water;Diving goggles cover the eyes and nose, and to ensure airtight, and swimming goggles only cover the eyes and water isolation, watertight grade at the bottom;
4, the use of differences: diving goggles and breathing tube, diving breathing apparatus and other supporting use, in use, generally require to breathe gas with the mouth, only in the necessary to clear the water of the diving goggles about balance the pressure in the surface of the diving goggles and other special circumstances to use nostril breathing.There are no such requirements for swimming goggles.
Therefore, swimming goggles can not do diving goggles, but diving 5 meters 10 meters is no problem, if it is to play island play underwater scenery, must have diving goggles.Generally speaking, swimming goggles and diving goggles must not be substituted.
How to choose swimming goggles and diving goggles
1. Selection of goggles
Buy swimming goggles had better be oneself to try, in addition to want to see whether myopia outside, see swimming goggles round the aposphere to have crack even, the belt of swimming goggles is elastic too loose too tight, if it is in high-grade times, can have nose buckle with increase, adjust size to you.It is recommended to buy civil goggles, because civil frames have aprons, and it is more suitable for people who wear goggles less often.
2, the selection of diving goggles
A. Mirror style: single window, double window.Single window mirror, maximum field of view;Double-window face lens, can change myopic lens, and the left and right degrees are different.There used to be multiwindow mirrors, but they are not popular now, and the cavity space is too large.
B. Endominal space: The larger the cavity, the more limited the field of vision. Pay attention to the volume of the cavity on the manual or try it on, and feel if the lens is closer to the face.
C. Suitable for your own face shape: try on the previously selected mirror with the face turned up at an Angle of 45 degrees and the mirror belt winding forward. Buckle the mirror on your face and hold your breath (you can't breathe out of your nose).If so, the mirror fits the shape of your face.
Note: Snorkeling surface mirrors are different from diving surface mirrors.The lens of the submersible mirror is hydro-tested and can withstand pressure in water depths of 50 meters, while the snorkeling mirror typically withstands pressure in water depths of 10 meters.The edges of the diving mirror are made of silica gel, and some snorkeling mirrors may be made of rubber, or there is something wrong with silica gel.Smell the smell in the mirror, silica gel should be tasteless, if the smell is pungent, that the material is wrong.The slight smell may just be talcum powder on silica gel and should not be pungent, please note the difference.
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Cayla
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