Extreme Slying

Written by Stephen Northcott


EXTREME FACTS: HUMIDITY Hotter air can hold more water vapour than cold, so asrepparttar air temperature fallsrepparttar 133159 relative humidity rises. When it reaches 100% it is known asrepparttar 133160 Dew Point and condensation will occur Even desert environments can have high atmospheric humidity, which can soon reach 100% when equipment is brought out from air-conditioning Condensation causes tape to stick torepparttar 133161 rotary drum, which can be catastrophic Most machines will employ a condensation sensor that can prevent operation for as long as an hour Non-condensing high humidity can still cause much faster head

How do I choose a scuba and snorkeling mask?

Written by Ryan Shane - Sharpdiver Staff


Your basic scuba masks consist of a silicon seal that acts as a suction on your face preventing water from entering.

What arerepparttar MOST IMPORTANT things look for in buying a scuba mask or snorkeling mask?

The mask is a long term investment. Withrepparttar 133158 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 aboutrepparttar 133159 special features later in this article.

However, your basic mask MUST coverrepparttar 133160 following.

When you buy a mask there are several extremely important features to look at. The first feature isrepparttar 133161 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 holdrepparttar 133162 mask up to your face and suck inrepparttar 133163 air through your nose. This will removerepparttar 133164 air inrepparttar 133165 mask creating suction to your face. Hold your breath and do not let any air back intorepparttar 133166 mask through your nose. While holding you breathe, try to pullrepparttar 133167 mask off of your face. The mask should pop off sounding off a popping noise. This tells you that there is a good seal. Ifrepparttar 133168 mask falls off very easily,repparttar 133169 mask is probably slightly to large for you. The last thing you want while diving or snorkeling is a leaky mask.

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