|
|
|
Boston Red Sox 2004 World Series Tickets Still Hot
BOSTON--The Red Sox are World Champions. Yes, it's true. It haD been 86 years in the making and now the waiting is over. The Red Sox are champions of the world. And funny thing ... after making history in a drag-em-out, nail-biting,...
Choosing The Right Telescope
Ever since Galileo, people have been pointing telescopes to the heavens and expanding their view of this world by looking outside of it into other worlds. It can be a fascinating and rewarding endevour. You can even meet some very good friends...
Materials for Snake and other Reptile Cages
What kind of materials should you use when constructing a reptile cage? This question was posed to me once by someone wishing to build their own reptile cage. They were particularly asking about pine and cedar as they had heard these were no good....
Mental Tools To Help Racers Enter the Zone
On the start line, you were so confident that day, you believed no one could race with you. On the track, racing felt effortless and smooth. You were in the flow on every jump, bump, and turn. Your rhythm was perfect in the whoops. Every section...
The history of snowboarding
How a piece of wood changed world history. Many times someone doing something a little different and having his or her ideas catch on has changed history. The pasteurizing of milk to prevent spoiling and contamination is a perfect example....
|
|
| |
|
|
|
|
How do I choose a scuba and snorkeling mask?
Your basic scuba masks consist of a silicon seal that acts as a suction on your face preventing water from entering.
What are the MOST IMPORTANT things look for in buying a scuba mask or snorkeling mask?
The mask is a long term investment. With the right maintenance and care, it can last a long time.
Quality
We are not talking about cheap mask that you buy for $10.00 that will continually leak on you. A good quality mask will run anywhere from $40.00 to $150.00 depending if there are any special features or not. We will talk more about the special features later in this article.
However, your basic mask MUST cover the following.
When you buy a mask there are several extremely important features to look at. The first feature is the seal to you face. Most masks have a good quality silicon rubber seal. The mask should fit snuggly on your face. A good test to test fit is to hold the mask up to your face and suck in the air through your nose. This will remove the air in the mask creating suction to your face. Hold your breath and do not let any air back into the mask through your nose. While holding you breathe, try to pull the mask off of your face. The mask should pop off sounding off a popping noise. This tells you that there is a good seal. If the mask falls off very easily, the mask is probably slightly to large for you. The last thing you want while diving or snorkeling is a leaky mask.
The second feature that you should look at is the accessibility to your nose. While the mask is on, try to pinch your nose. By pinching
your nose we mean that both your nostrils can be closed. This is essential if you are scuba diving as you need to pinch your nose to equalize the air pressure as you are descending deep into the waters.
If you have difficulties pinching your nose or can not even reach your nose at all, that mask will not work for you.
Another thing to look for but may not be as important is the visibility. You should have adequate peripheral vision and not tunnel vision with the mask. A good method of checking your peripheral vision is the following:
With your mask on, point your arm straight out in front of you with the palm of your hands together as if you’re about to diving into a swimming pool. At this point you should see your hands.
Next, while looking straight ahead, slowly open your hands and arms apart moving them away from each other. Keep going until you no longer see the hands and arms. That angle in which you can no longer see your arms is the angle of peripheral vision.
A good range is between 100 degrees and up. Normally your peripheral vision without the mask is close to 180 degrees.
About the Author
============================================================
copyright © 2004 - All Rights Reserved - Sharpdiver Sports
For more information on learning about scuba diving gear as well as finding discounts on scuba equipment. Please visit
http://www.sharpdiver.com/
============================================================
Sharpdiver Scuba Gear & Snorkel Equipment
|
|
|
|
|
|