Medical Oxygen Tanks – M6, D & E Cylinders
Purchase a medical oxygen tank from State Medical Equipment for prescribed oxygen therapy. Available cylinder sizes include M6, D, and E oxygen tanks, giving patients multiple capacity and portability options depending on their prescribed oxygen needs.
These are reusable medical oxygen cylinders designed to store compressed oxygen and require the appropriate compatible regulator or oxygen-conserving equipment for use.
State Medical Equipment
3950 East Sunset Road, Suite 112
Las Vegas, NV 89120
Call: 702-538-9555
Email: help@statemedicalequipmentlv.com
A valid prescription is required for medical oxygen.
Available Oxygen Tank Sizes
| Cylinder Size | Approx. Oxygen Capacity | Portability |
|---|---|---|
| M6 Oxygen Tank | ~165 L | Smallest and lightest option |
| D Oxygen Tank | ~425 L | Portable mid-size option |
| E Oxygen Tank | ~680 L | Larger portable cylinder |
Actual cylinder specifications can vary slightly by manufacturer and configuration.
Key Features
- Three cylinder sizes — Choose from M6, D, or E medical oxygen cylinders.
- Reusable oxygen cylinders — Designed to be refilled and reused rather than discarded after use.
- Portable options — Different cylinder sizes provide different balances of oxygen capacity and portability.
- Compressed medical oxygen storage — Designed for use with prescribed medical oxygen.
- Regulator-compatible — Portable medical cylinders commonly use CGA 870-style valve configurations; the exact valve must be confirmed for the cylinder being purchased.
- Multiple carrying options — Depending on cylinder size, compatible carrying bags, carts, or wheelchair cylinder holders may be used.
- Local respiratory equipment supplier — Available through State Medical Equipment in Las Vegas.
M6 Oxygen Tank
The M6 oxygen cylinder is the smallest of the three options and is designed for users who prioritize portability.
A typical M6 cylinder holds approximately 165 liters of oxygen and is compact enough to use with an appropriate carrying bag.
Typical M6 aluminum cylinder specifications are approximately:
- Oxygen Capacity: 165–170 L
- Diameter: approximately 3.2"
- Height: approximately 11.5–11.8"
- Empty Cylinder Weight: approximately 2.2 lb
Exact specifications depend on the cylinder manufacturer.
D Oxygen Tank
The D oxygen cylinder provides substantially more oxygen capacity than an M6 while remaining portable.
A standard D cylinder typically holds approximately 425 liters of oxygen, making it a useful middle ground between the compact M6 and larger E cylinder.
Typical aluminum D-cylinder specifications are approximately:
- Oxygen Capacity: 425 L
- Diameter: approximately 4.4"
- Height: approximately 16.5"
- Empty Cylinder Weight: approximately 5.3 lb
Exact specifications depend on the cylinder manufacturer.
E Oxygen Tank
The E oxygen cylinder provides the greatest oxygen capacity of the three sizes offered on this page.
A standard E cylinder holds approximately 680 liters of oxygen. Because of its larger size, an E cylinder is commonly transported using a compatible oxygen cylinder cart or wheelchair cylinder holder rather than carried like a smaller M6 cylinder.
Typical aluminum E-cylinder specifications are approximately:
- Oxygen Capacity: 680 L
- Diameter: approximately 4.4"
- Height: approximately 25"
- Empty Cylinder Weight: approximately 7.9 lb
Exact specifications depend on the cylinder manufacturer.
Specifications
| Specification | Details |
|---|---|
| Product Type | Medical Oxygen Cylinder / Oxygen Tank |
| Available Sizes | M6, D, E |
| Product / Part # | Varies by cylinder manufacturer and selected size |
| M6 Oxygen Capacity | Approximately 165–170 L |
| D Oxygen Capacity | Approximately 425 L |
| E Oxygen Capacity | Approximately 680 L |
| Cylinder Material | Typically aluminum; verify exact SME inventory |
| Gas Type | Compressed medical oxygen |
| Typical Portable Valve Connection | CGA 870; verify exact cylinder configuration |
| Reusable / Refillable | Yes, with appropriate medical oxygen filling service |
| Prescription Required | Yes |
Choosing Between M6, D & E Oxygen Tanks
The primary differences between the three cylinders are oxygen capacity, physical size, weight, and portability.
M6 — Best suited to customers prioritizing a smaller, lighter cylinder.
D — Provides greater oxygen capacity while remaining relatively portable.
E — Provides the greatest oxygen capacity of these three options but is larger and heavier.
The appropriate cylinder size depends on the patient's prescribed oxygen requirements, flow rate, duration of use, regulator or conserving device, and portability needs.
How Long Does an Oxygen Tank Last?
Cylinder duration is not determined by tank size alone.
Runtime depends on:
- Cylinder capacity
- Prescribed oxygen flow rate
- Remaining cylinder pressure
- Continuous-flow versus compatible conserving delivery
- Individual equipment configuration
For example, a larger E cylinder contains substantially more oxygen than an M6 and therefore generally provides longer use at the same continuous flow rate.
Do not change a prescribed oxygen flow rate to extend cylinder duration.
Regulator & Oxygen Conserver Compatibility
An oxygen cylinder requires the correct compatible equipment to control oxygen delivery.
Depending on the cylinder and prescribed setup, this may include:
- Oxygen regulator
- Oxygen conserving device
- Pressure gauge
- Nasal cannula
- Oxygen tubing
- Cylinder carrying bag
- Oxygen cylinder cart
- Wheelchair oxygen cylinder holder
Compatibility should be confirmed before purchasing accessories because valve connections and equipment configurations can differ.
Prescription Required
A valid prescription is required for medical oxygen.
The prescription should specify the oxygen flow rate and frequency of use prescribed by the patient's healthcare provider.
Oxygen equipment should only be used according to the prescribed settings and healthcare provider's instructions.
Oxygen Tank Purchase vs. Rental
This page is for customers who want to purchase an oxygen cylinder.
State Medical Equipment also offers a separate oxygen tank rental service in Las Vegas and Henderson for customers who need oxygen equipment temporarily.
Keeping purchase and rental options separate makes it easier to choose between owning a cylinder and using equipment for a limited rental period.
Important Oxygen Safety
Medical oxygen supports combustion and requires proper handling and storage.
- Keep oxygen away from flames, smoking, vaping, and ignition sources.
- Do not use oil, grease, or petroleum-based products on oxygen valves or fittings.
- Keep cylinders secured to prevent falling or damage.
- Use only compatible oxygen regulators and accessories.
- Follow all manufacturer instructions and prescribed oxygen settings.
- Do not attempt to modify or repair an oxygen cylinder or valve.
State Medical Equipment
State Medical Equipment
3950 East Sunset Road, Suite 112
Las Vegas, NV 89120
Call: 702-538-9555
Email: help@statemedicalequipmentlv.com
A valid prescription is required for medical oxygen.