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The burden of proof is on the positive. If you think that these are more dangerous than conventional snorkels, then you need to show some evidence
We all know that correlation does not necessarily imply causation. The number of correlative factors in any event may be almost infinite.The great majority of people killed in sky diving accidents also watch TV and wear sneakers. Causation must be teased out very, very carefully. Remember this when considering age-related mortality statistics and specific catastrophic events. It's a complicated ball of wire. Aged automobile drivers probably kill more younger drivers than die themselves because of their infirmities. A secondary age-related causative factor once removed? Battle deaths are also heavily skewed toward younger soldiers. Their age is not really directly causative, even when accounting for their relative numbers.
I have a business in Cancun-to-Cozumel that rents Ocean Reef Full Face Snorkel Masks. During peak season we rent hundreds of times a month. Many of the rentals result in sales. We have never had any problems at all similar to those described in this article. But it is important to note that there are many, many Asian knock-off and inferior products that have restricted snorkel intake tubes, inferior silicone seals, etc. The one described in the article is an inferior knock-off.My non diving wife with mild thalassophobia (she can snorkel, but won't dive) was considering getting one of those new full facemask snorkels for our upcoming trip to Turks and Caicos. I just saw this.
How One Woman's Snorkeling Death Might Help Save Lives
Anyone have any opinions or insights?