Enriched Air (often referred to as Nitrox) can enrich your diving experience, and I have found it especially beneficial on dive vacations, when I am adventuring beneath the waves on multiple dives every day. As with anything, there are risks involved with using enriched air, but those risks are easily mitigated once you know what they are. For this reason, dive shops will not fill your tanks with Enriched Air unless you can prove you have successfully completed the Enriched Air course.
Air is comprised of 21% oxygen, and roughly 79% nitrogen (included are waste gases and other trace elements, but nitrogen comprises the lion’s share of the remaining gas portion). You know that when compressed gas enters our tissues, they become increasingly saturated with nitrogen as the dive progresses, and therein lay the struggle that occupies the minds, and fills the course content of scuba divers and the educational curriculum of this sport. Our safety stops at the end of a dive (3 minutes at 5 metres or 15 feet) give our bodies a little extra time to off-gas that nitrogen from our tissues at a safe, slow rate. When diving enriched air, the higher oxygen content, translates into lower nitrogen content, meaning our bodies are absorbing less nitrogen throughout the dive to begin with.
What does that mean to us?
1. Enjoy a longer allowable bottom time (YAY!). You can extend your "No Decompression Limits" with recreational enriched air, because you are reducing your nitrogen absorption. Take a look at the chart above. Diver #1 on 36% enriched air can dive for over 200 minutes at a depth of 50 ft. Diver #2 breathing air can only dive for 70 minutes. That's a big difference! What I like about that, is that I often finish my dive long before I reach those time limits, so my nitrogen levels are much lower. Awesome!
Review: Your "No Decompression Limit (NDL)" is the time limit for the length of time you can stay at a given depth safely, without requiring mandatory decompression stops (only for tech divers with specialized training and equipment). A recreational diver should never have to do a decompression stop, but if you accidentally exceed your recreational limits on a dive, and your computer tells you to make a decompression stop, do it!
2. Enjoy shorter surface intervals. Again, you are absorbing less oxygen, so your off-gassing time will be shorter; yes you will be back in the water sooner than your air-sucking friends!
3. Enjoy longer repetitive dives. I know, it is a common theme, but because you are reducing your nitrogen intake and absorption, you can enjoy longer multiple dives than if you were only breathing air! I find enriched air particularly beneficial on a scuba vacation, especially scuba liveaboards!
Side anecdote: Annie and I were on a scuba liveaboard earlier this year. We were both diving 32% enriched air, and Annie was using 2 dive computers, her main one, and her new back-up computer. On the second day, on an afternoon dive, she heard a computer alarm going off, and checked her main computer, which reported that she was fine (it was not making any noise). She assumed it was another diver's computer, and resumed her dive. Later, while we were eating cookies and drinking Norm's famous ginger-tea during our surface interval, she discovered, looking at her computers, that it was her back-up computer. Her main computer was set to 32% enriched air, but her new back-up computer was still set to air (she had forgotten to set it to nitrox). It had been warning her that her safe minutes were almost up, and it was time to end the dive. It just goes to show, that if she were diving air, her subsequent dives were going to become shorter and shorter to keep her nitrogen at a safe level. We did about 4 dives a day on that trip for 9 days, so enriched air (or Nitrox) was a must for me!
4. Feel Energized! Although PADI says there is no scientific proof to show that you feel less exhaustion and more energy when breathing higher levels of oxygen, nitrox divers will often swear to you that they feel less tired after a dive, and have more energy. Who knows? Judge for yourself.
What will I Learn on the PADI Enriched Air course?
You will learn why diving with air that has higher oxygen and lower nitrogen content gives you more bottom time, along with enriched air equipment considerations. During a practical session, you will:
The PADI enriched air course is one of the most popular courses in the program, because scuba diving with enriched air nitrox gives you more no decompression time, especially on repetitive scuba dives. If staying down longer and getting back in the water sooner sounds appealing, then don’t hesitate to become an enriched air diver.
When is the NEXT PADI Enriched Air Diver Course?
Click on our Calendar of Events below, to see courses and trip schedules,
or call 905-898-5338 to talk to an associate today. The class runs in one evening, so it is easy to accomplish - let us know when you want to take the course, and we can try to accommodate you!
Found in the Pacific and Indian Oceans. The Fang Blenny is a fascinating little guy. He is often referred to as a "mimic blenny", as he fools his victims into believing he is just another cleaner fish, mimicking the swimming habits of the bluestreak cleaner wrasse, and hanging around cleaning stations, waiting for the next unsuspecting client.
As a larger fish comes into a cleaning station to have parasites cleaned from its body and even inside its mouth, the fang blenny aggressively attacks and bites a chunk of scales, skin, and/or flesh, then beats a hasty retreat. How does he get away with it? A fang blenny does indeed have fangs, as his name would imply, and victims are injected with an opioid venom that both numbs the bite somewhat, and lowers their blood pressure, making their reactions slow and clumsy. What a nasty little fellow! Don't let that happy smile on his face fool you, they have been known to bite divers too!
I guess I should be happy that the fang blennies I encountered were wary of my presence, and retreated into their holes until I was gone!
Next Dive Against Debris scuba event:
June 2, 2019 10:00 am
Bonnie Boats, Jackson's Point
Ways to get the most out of your Scuba Diving Certification with
Adventure Sports Newmarket Inc.
Taylor Lapratt Abreu
So, you made it! You finally managed to get out there and get your scuba diving certification. You probably went on a trip and fell in love with it, or maybe you spent a weekend at your cottage showing off your skills to the rest of the family, who couldn’t quite get as deep as you in the lake. Who knows… But now what? Waiting for your next family trip? Or perhaps, waiting for summer again so you can rent gear once, or maybe even twice if your lucky? Finding it difficult to find others that share the same interest or certification? We’ve all been there.
New divers often have trouble finding opportunities to continue to engage in the sport, especially when they don’t have any family or friends who are certified as well. Here at Adventure Sports Newmarket Inc. we value your interest in scuba and provide a variety of opportunities for you to practice your dive skills, invite friends and family to ‘try it out’, meet new people, explore new places, and really just dive… as much as you want!
So, what are these opportunities we have to offer?
Monday Night Pool Dives at the Stronach Aurora Recreation Complex
We believe in the importance of keeping up-to-date with your scuba diving skills and overall understanding of diving in general. Therefore, throughout the fall/winter season, between September and April, we offer weekly opportunities for divers to come out, hang out, and practice, practice, PRACTICE!
For $25 +tax, we get you the rental gear you need and meet you at the at 8pm on Monday nights.
Invite a Friend to Try it out & Join them in the Pool
Now it’s time to try to convince your family and friends to give it a try, am I right? In addition to our Monday Night Pool Dives, we offer Discover Scuba Diving classes for those who are wishing to give the sport a try, in a safe and comfortable environment… the pool! Have them come out and buddy up with them in the pool as they practice their skills and discover the fun with one of our Divemasters or Instructors!
For $50 +tax, they would receive an hour of in-class learning, an hour of diving in the pool, and the appropriate rental gear for them to participate. All they will need is a swim suit and towel!
ASN Dive Events
Throughout the dive season, Adventure Sports arranges Scuba Diving Events geared towards acts of conservation as well as fun and interactive activities built around different holidays. Our most popular annual dive events are hosted at the beginning and end of each dive season, starting with our Dive Against Debris in the Spring and ending with our Underwater Pumpkin carving in the fall. These events are free to attend and are a great way to familiarize yourself with Adventure Sports dive locations as well as a great opportunity to meet our experienced and loyal divers.
Meet the Gang – Join the Club
The Tank Jockeys Dive Club is a year-round recreational scuba diving club based out of Newmarket, Ontario through Adventure Sports Newmarket Inc. The focus of this dive club is to promote socialization amongst local divers through monthly social events and a wide variety of different diving opportunities.
With new divers joining us each year, this club has grown immensely. From Instructors & DiveMasters to Rebreathers & Sidemount Divers … the variety is there, making it a great group to meet some new dive buddies close to home!
The group meets on the second Tuesday of every month to enjoy dinner & drinks together, while sharing stories, experiences, advice and upcoming opportunities.
Throughout May to September, Adventure Sports Newmarket Inc. offers a variety of local dive trips to locations such as: Tobermory, Brockville, Kingston, Christian Island and more! Though some of these trips are only suitable to Advanced Open Water Divers whom are certified to a maximum recreational depth of 100 feet, locations such as Tobermory and Christian Island offer divers a great opportunity for their first dive, or newer, more novice divers a chance to practice the sport of scuba diving at a new destination close to home.
Local dive trips vary between a single day or an entire weekend of diving. Each day of diving typically consists of two boats, with one headed out in the morning typically with our Advanced divers and one in the afternoon typically consisting of our Open Water divers and students. You can expect a two-tank dive and depending on the trip location and weather/water conditions, you may be able to visit two separate sites for these dives!
Joining us on our Ontario Dive Trips throughout the summer is probably the best way to really get the most of diving close to home. Exploring different dive sites across Ontario can offer incredibly clear visibility, loads of different shipwrecks to explore, new diving conditions such as drift, or even the chance to meet new divers outside of Adventure Sports Newmarket!
From January to December, we offer a wide variety of dive trips abroad, targeted towards many types of different divers. Trips range in location, accommodation type and price so that all divers can choose a trip best suitable to them. We offer both all-inclusive resort trips suitable for families or groups of divers and non-divers, as well as liveaboard trips for you aquaholics looking to dive up to 25 times in just one week! Though we do have our annual trips to specific locations, each year we do our best to add a new and exciting destination into the mix, hoping to explore more of the ocean annually with our divers (ex. Roatan 2018, Indonesia 2019, Philippines 2020)!!!
So, whether it’s to use up the rest of your vacation time, advance your skills in a new scuba course, or even just to jump in to the sport of scuba for your first time in general, these trips abroad are a great way to do so!
Continue your Education
As many of you may already know, courses never end here at Adventure Sports. From Open Water Diver to Advanced, Rescue Diver to Dive Master... Instructor… Dive Specialties… There’s always something to offer.
Do you plan on an intense dive trip of up to 5 dives a day? Maybe an Enriched Air Diver Course is something you’d like to consider. Did you get sucked in to scuba diving because of all the underwater creatures? Maybe the PADI Underwater Photography course is something you’d be interested in. Perhaps you’d like to feel more confident diving with a family member? A Rescue Diver course will do the trick!
Wherever your scuba diving goals lead you, we will take you.
Join our Facebook Group
The ASN Scuba Forum Group is your online way of interacting with other divers from our dive shop. This is the place where you can share stories you see online or pictures of creatures that caught your eye. Here is where everyone enjoys sharing all things scuba. Ask questions about something you’re unsure of or ask if anyone is up for a dive this weekend… Whatever you wish to share or ask, this is the best place to do it.
By Jill Smith
For Sealife DC2000 users, there is a new firmware update that offers some improvements on the camera; I think you will be interested!
Why I like it:
NO MORE BUFFERING TIME! Or at least not noticeable.
I want RAW capture capability in my underwater camera, which is why I moved to the Sony A6000 in the first place. When Sealife offered RAW capture in the DC2000, Jody got one for him and the shop to use. We like it very much, EXCEPT for the buffering time after taking a shot; it prevents you from taking another one for 3 or 4 seconds, which can be a very long time if you are face to face with a cool animal underwater!
There are many other improvements made to camera functions as well - click the button below to read about them in detail, and find out how to upgrade your DC2000 camera.