Rebreather
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RebreatherO2ptima CM -
RebreatherExtendAir CO2 Absorbent Cartridge -
RebreatherO2ptima CM Skid Plate -
RebreatherO2ptima CM Scooter Ring -
RebreatherBungee Slider
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Whole Lotta ChO2ptima Going On
Launched in early 2020, just as the pandemic was getting started, Dive Rite’s innovative chest-mounted O2Ptima, aka the ChO2ptima, is generating significant buzz among instructors and users as the hot new rebreather on the market...
Oxygen Toxicity and CCR/Rebreather Diving
Oxygen toxicity is a consequence of the biochemical damage that occurs in cells as a result of oxygen free radicals. Whenever oxygen is present, oxygen free radicals are formed. The number of radicals is directly related to the partial pressure of oxygen (pO2). Our cells have several mechanisms to inactivate oxygen radicals and to repair the damage that they cause. These defenses are able to keep ahead of the damage at normal partial pressures of oxygen but they fall behind when the pO2 exceeds about 0.45 atmospheres (ata)...
SuperFabric®
Dive Rite uses a heavy weight 1200 denier nylon base material with a pattern of armored plates that maximizes abrasion resistance. The SuperFabric® combination we use has proven to be 4 times more abrasion resistant than Kevlar...
FAQ
What makes the O2ptima CM different from other rebreathers?
The O2ptima CM is a chest-mounted, fully electronically controlled closed-circuit rebreather (eCCR), known for its versatility and compact design. It easily attaches to almost any harness and is compatible with sidemount, back-mounted doubles, or single-tank systems. Its modular design allows it to be added or removed during dives for various applications, such as deep ocean dives or overhead environment penetrations.
How long do the consumables last?
The main consumable for the O2ptima CM is the CO2 absorbent. Depending on the type (granular or cartridge), the duration can range between 4-6 hours of dive time under typical conditions. Battery life for the electronics ranges between 30-50 hours.
What type of training is required to use the O2ptima CM?
All rebreathers, including the O2ptima CM, require specific training before they can be used. You must be certified on the specific model to operate it safely. See Dive Rite’s O2ptima Instructor Listing to find an instructor.
What are the routine maintenance requirements?
Routine maintenance for the O2ptima CM involves replacing the galvanic oxygen sensors annually and a full service every two years or 100 dives.
Can I switch between granular and cartridge CO2 absorbents?
Yes, the O2ptima CM is designed to accommodate both Micropore ExtendAir cartridges and loose granular absorbents. This versatility allows divers to choose the option that best suits their diving conditions and preferences.
Is the O2ptima CM suitable for travel?
Weighing only 14.4 lbs without the oxygen cylinder or absorbent material, the O2ptima CM is compact and ideal for travel. Its chest-mounted design allows it to be rolled up and stored in a carry-on, making it easy to transport.
