Does the NT-03 provide continuous flow?

No. It delivers pulse-dose oxygen matched to your breathing. VARON points buyers who need continuous flow to the NT-05.

How long does the battery last?

The 4-cell battery gives up to 2.5 hours and the 8-cell battery up to 5 hours. Buying a spare battery extends time away from power.

What comes in the box?

The concentrator, an AC adapter, a 2500 mAh battery, a car adapter, a shoulder bag and an instruction manual.

Can I use it in a car?

Yes. The included car adapter runs it from a 12V DC outlet, and the external battery covers use away from any power source.

How much oxygen does it produce?

Its maximum equivalent output is 3 L/min in pulse mode, delivered with each breath rather than as a steady stream.

Is it good for sleep use?

Not typically. Pulse delivery depends on breathing through the cannula, so users who need oxygen while asleep usually need a continuous-flow unit.

VARON NT-03 Portable Oxygen Concentrator Price History: Lowest $359.00

Q: Where is the VARON NT-03 Ultra Compact Portable Pulse O2 Generator cheapest?

At oxygenconcentrator.shop, for $359.00, as of our latest check.

Q: What do buyers say about the VARON NT-03 Ultra Compact Portable Pulse O2 Generator?

Rated 4.9 out of 5 from 32 ratings.

What reviewers say

4.9 / 532 ratings

Rated 4.9 out of 5 from 32 ratings, buyers describe the NT-03 as light and easy to carry and say the breath-matched delivery and simple timer buttons make it manageable for daily use. Complaints center on battery runtime and the need to buy extra batteries for longer outings.

What people mention

WeightPraisedOwners say it is easy to carry and fits in its shoulder bag.
BatteryMixedBuyers like the swappable batteries but say runtime is limited without spares.
ControlsPraisedThe timer buttons and readable panel are called simple for seniors.
Oxygen deliveryPraisedUsers say the breath-matched pulse delivery feels natural.
Continuous flowCriticisedReviewers note it does not provide steady flow for sleep or constant needs.

From oxygenconcentrator.shop

Super compact, only 3.08 lb
Pulse flow oxygen supply matched to your breathing
Replaceable external battery with easy operation and timing function
Three charging options: AC power, DC car power, external battery
Timer buttons for 40, 60, 80 minutes, plus continuous 180-minute supply
Maximum oxygen production flow (equivalent) 3L/min

Guarantee: One-year warranty covering manufacturing defects and performance failures, with free repair or replacement within the warranty period; local service centers acr
Returns: 30-day return policy; item must remain intact and in resalable condition.
Shipping: Free US shipping, 3–5 business days, no P.O. Box; concentrators and accessories ship separately.
Packs: Standard set, or Plus one 4-cell battery, or Plus one 8-cell battery; US or EU plug.
In the box: 1X Portable oxygen concentrator, 1X AC Adaptor, 1X 2500 mAh Battery, 1X Car converter/car adapter, 1X Instruction manual, 1X Shoulder bag

About the VARON NT-03 Ultra Compact Portable Pulse O2 Generator

The VARON NT-03 is a portable pulse-flow oxygen concentrator. It weighs 3.08 lb and comes with a shoulder bag for carrying. It uses PSA oxygen production technology.

In pulse mode, the unit senses when you start to inhale and delivers oxygen with your breath. The control panel has timer buttons for 40, 60 and 80 minutes. Pressing the setting button four times gives a continuous 180-minute supply.

The battery is separate from the main unit, so you can swap it for a larger or smaller pack. The standard 4-cell battery weighs 0.67 lb and gives up to 2.5 hours of use. An optional 8-cell battery weighs 1.06 lb and gives up to 5 hours. The unit can be powered from an AC outlet, a car's DC outlet, or the external battery.