
Upcoming Events:
- April 6th: Beach Dive @ Edmonds Under Water Park
- April 5th: Boat dive w/Bandito Charters
- April 5th: Open Water class starts
- April 20th: Beach dive @ Saltwater State Park

Nitrox Diving
Nitrox is Oxygen Enriched Air. The gas is ultra-purified, making it much cleaner than conventional compressed air. The result is a breathing gas that is 50 times cleaner than conventional scuba compressed air (ever taste oil vapors in your air?).
The major benefit from breathing Nitrox when diving comes from the decrease in nitrogen in your breathing gas. As we divers know, nitrogen is the main culprit behind decompression sickness and nitrogen narcosis. By breathing a gas with less nitrogen (and more oxygen) a diver can expect to have a much larger safety margin, and many other benefits, such as:
- less nitrogen narcosis
- less post-dive fatigue
- extended no-decompression limits, sometimes as much as two to three Repetitive Groups
Many divers even report being warmer on their Pacific Northwest dives!
Silent World has been involved with Nitrox since 1990; we were one of the first dive operators in the state to offer Nitrox. We have the experience and service to help you get involved with this new boon to safer diving.
What's Included
- Books and material
- Optional two (2) Open water dives (including nitorx cylinder rentals)
Requirements:
- Open Water/Beginner course or equivalent (unless Nitrox is taken in conjunction with Open Water course)
- Dive gear (available for Rent)
Sign up!
Call the store at 425-747-8842 or e-mail an instructor to sign up for a lesson or discuss private instruction.
At a Glance
A specialty course that will allow you to dive using gas mixtures enriched with up to 40% oxygen.
Prerequisites
Open Water/Beginner Class or equivalent
Nitrox class can also be taken in conjunction with Open Water
Class Time
1 classroom session
Optional open water dives