The Bonnier Dive Group -- Sport Diver and Scuba Diving magazines -- are at DEMA Show 2012 in Las Vegas, the world's only international, trade-only show for the scuba diving industry. Here's a recap of their activities at DEMA Show Day 1, on Wednesday, Nov. 14.

CO testing is recommended, not mandatory, and poisonings are not recorded — but is there really cause for alarm?

This year ScubaLab put a group of new regulators through a grueling test regimen — these four models were the top performers.

Dive Gear reviews from our recent equipment test at The Devil's Den in Williston, Florida.

CETATEK’s new aquabionic warp1 fins instantly adapt and continuously change to any kick style and load level based on the demands of the diver. The warp1 blade features unique construction: At rest, it is relatively flat, but when the diver kicks, the sophisticated design creates a deep scoop that channels water to create thrust.

CETATEK introduces the new patent pending aquabionic warp1 fin providing water adapting responsive propulsion technology.

The Supernova Dry snorkel from Cressi uses a 100 percent silicone mouthpiece and a corrugated breathing tube, and comes with a large, easy-to-clear purge valve on the bottom, and a completely dry top on the other end. It’s the perfect design in a snorkel, allowing for effortless breathing performance when cruising along on the surface, plus it eliminates virtually all water from entering the tube when submerged.

There are times when renting dive gear makes sense, but there are some excellent reasons for why you should purchase your own gear.

From dodging icebergs to dodgy vintage gear, these five dives change your underwater perspective.