Frequently Asked Questions

GENERAL

Why should I buy a Spare Air?

SPARE AIR is the smallest redundant SCUBA system available yet is packed with 3000 psi to provide you with enough air to get you to the surface in an emergency from recreational depths. Take safety into your own hands - buy a SPARE AIR!

When diving, safety is paramount, and having a reliable reserve breathing system can make all the difference. SPARE AIR is designed to be your compact and dependable backup during out-of-air situations. As a fully self-contained and refillable breathing device, it’s engineered to be ready when you need it most.

The always-on regulator ensures you have immediate access to life-saving air whether you're in an underwater emergency or a toxic air environment. Store it at full pressure and refill it only if you use it or before traveling on a commercial airline.

For the safety-minded diver, SPARE AIR should be a standard addition to your diving gear. Embrace peace of mind and enhance your diving safety with this essential piece of equipment.

How does Spare Air work?

Spare Air is easy to use! Simply put the mouthpiece in your mouth and start breathing. Spare Air has a pressure indicator and a refill port. Visit How Spare Air works for more information.

Is Spare Air refillable?

Yes, SPARE AIR can be refilled easily from a scuba tank, at a dive shop, or by your own high pressure hand pump. Easily refill it yourself from a larger, full scuba cylinder—allowing you to be in control of your own safety! This not only provides convenience but also ensures you're prepared for any diving situation.

Visit our Refilling page for details.

How big is a Spare Air?

They are so small and compact anyone can carry them diving! SPARE AIR is the smallest redundant SCUBA system available yet is packed with 3000 psi, enough air to get you to the surface in an emergency.

The 300 model is similar to the size of a can of hairspray. The 300 model and the 300-N Nitrox model hold 3 cubic feet of air or approximately 57 breaths at the surface.

The new 600 model is the same height as the 300, expanding 1 inch in diameter and adding only 1-1/2 lbs while doubling air capacity. The 600 model doubles the air capacity of the 300 model to 6 cubic feet or air or approximately 114 breaths at the surface.

Which size Spare Air should I buy?

The 300 model is our most popular size with recreational divers and is also offered in a Nitrox version for those of you who dive with Nitrox. The new 600 model will meet the demands of divers requesting an even larger air capacity (also available in a Nitrox version).

Do you need to be a certified diver to use SPARE AIR underwater?

As with all SCUBA products SPARE AIR is recommended to be used by certified SCUBA divers.

Do you need to be a certified diver to use SPARE AIR for above water out-of-air-emergencies?

Many customers use SPARE AIR for above water emergency situations like residential and commercial fire (smoke inhilation prevention) and industrial chemical air contamination. In those cases, there is no certification necessary for above ground use.

Where can I mount it?

SPARE AIR units come with a Holster that allows you to mount the SPARE AIR virtually anywhere! Two quick disconnect straps connect the Holster on the front of the BC cummerbund, on your tank strap, or anywhere on your BC that you choose.

For emergency situations, having your SPARE AIR device ready and accessible is crucial. Here's how to ensure you're prepared:

Mounting Instructions: Secure the Holster firmly on your preferred location, whether it's on the BC cummerbund or tank strap. Make sure it's easily reachable. More information is available on our mounting page.

Emergency Use:

• ● In a critical moment, reach for your SPARE AIR with your dominant hand.
• ● Detach it swiftly from the Holster.
• ● Place the mouthpiece into your mouth.
• ● Purge any water if necessary, and breathe confidently.

This setup ensures you have quick, simple, and safe access to your SPARE AIR, providing peace of mind as you explore the depths.

How does the Safety Leash Enhance Safety?

The Safety Leash provides peace of mind by ensuring that your emergency breathing device is always within reach. Here’s how it boosts safety:

• ● Secure Attachment: Keeps your breathing device securely attached to your dive gear.
• ● Quick Access: Allows for rapid deployment in an emergency.
• ● Improved Visibility: Bright design makes it easy to locate underwater.
• ● Extra Layer of Insurance: Prevents misplacement or loss during use.

By securing your breathing apparatus conveniently and securely, the Safety Leash gives you confidence and assurance, knowing that if a critical situation arises, you're prepared.

How has the New Dial Gauge Pressure Indicator been update?

The primary function of the Updated Dial Gauge Pressure Indicator is to provide an accurate measurement of pressure levels in your Spare Air.

Key Features:

• ● 30% Bigger, easier to read face.
• ● Easier to read Neon Yellow indicator.
• ● Shows pressure in both PSI and BAR.
• ● Gauge will always display in correct orientation (no longer random threaded).
• ● Made in USA.

Why it is Essential?

Maintaining optimal pressure in equipment is crucial not only for performance but also for safety. The indicator helps prevent unexpected failures and extends the lifespan of your Spare Air.

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BUYING

Where can I purchase a Spare Air?

Spare Air can be purchased direct on our Online Store or from an Spare Air Dealer or Distributor if you are overseas.

What is included in the 3 cu.ft. Emergency Breathing System?

Key Components:

• ● Breathing Air Regulator
• ● 3 cu.ft. Air Tank
• ● Ergonomic Mouthpiece
• ● Pressure Gauge (Standard or Dial Gauge option

What is included in Spare Air Package?

• ● Spare Air System
• ● SCUBA Tank Refill Adapter
• ● Safety Leash
• ● Covered Holster

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TECHNICAL

Does Spare Air work well in different water temperatures?

Yes, they have been tested and proven effective in all recreational diving conditions.

What is the recommended depth?

The SPARE AIR model is designed for recreational diving limits of less than 100 feet.

Does the Spare Air affect buoyancy?

All models are nearly neutrally buoyant. You may need to adjust your weight as necessary.

How do you fill the Spare Air Tank using the tank to tank refill adapter?

Step-by-step process:

1. 1. Gather your Spare Air and a full scuba tank
2. 2. Attach the fill adapter to the scuba cylinder.
3. 3. Connect the Spare Air unit.
4. 4. Open the valve slowly to transfer air.
5. 5. Turn off the valve and detach when full.
6. 6. Inspect pressure and readiness.

See the owner's manual for more detail.

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REPAIR

How long is the warranty period?

SPARE AIR units have a one-year warranty from the date of purchase.

What maintenance does SPARE AIR require?

Rinse in fresh water, dry, and store full after each dive. See Owner's Manual.

How often should I service my SPARE AIR?

Annually, with hydrostatic testing every five years. Send your Spare Air to us for Annual Overhaul.

Do the 3000 psi cylinders have to be hydro tested?

Yes. VIP annually, hydro test every five years.. Send your Spare Air to us for hydro testing.

Can I order a repair part?

Many spare parts can be purchased on our Online Store. Examples are: Mouthpiece, Snap Ring, Check Valve Cap, etc. If the part is internal or not found on our online store then it requires installation by an authorized SPARE AIR technician or will be changed out as part of the annual overhaul service. Please take your unit to an Authorized SPARE AIR Dealer/Dive Shop or send to Submersible Systems for repair.

Can I upgrade to a Nitrox model ?

Yes, complete the Repair and Trade-In form checking the box for ‘Convert to Nitrox'.

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FLYING

Can I take my Spare Air on a plane?

Yes – Spare Air is easy to travel with. See Traveling With a Spare Air for guidance.

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