An oxygen concentrator works by drawing in air, filtering out impurities, and then using a process called Pressure Swing Adsorption (PSA) to separate oxygen from nitrogen. It then delivers oxygen through a nasal cannula or mask to the user, providing continuous oxygen therapy.

Oxygen Flow&Oxygen Concentration:
NT-02: 1-5L/min pulse flow (93% ± 3% at any flow)
NT-06: 1-6L/min Continuous flow (93±3% at 1 L/min)
Weight:
NT-02: 4.85 lbs
NT-06: 7.9 lbs

All oxygen concentrators come with a one-year warranty, and there are repair centers in the United States and other places to provide you with after-sales support at any time.

Machines：
US: about 3-6 Business Days(Note: We do not support PoBox addresses)
Other: about 10-15 Business Days
Accessories:
US: About 5-10 Business Days(Note: We do not support PoBox addresses)
Other: About 10-15 Business Days
Your package usually ships within 48 hours. Boxes arrive at their destination 3-5 days after the tracking number was generated. Once your package has been packed and assigned a shipping label, you’ll be notified via email when it ships. This will include tracking information so you can monitor the status of your delivery.

Yes, you can use an oxygen concentrator while sleeping. Many people who require supplemental oxygen use their concentrators at night to ensure they receive a steady flow of oxygen while they rest. In addition, the NT-03/NT-05 has an automatic shut-off feature, so it is not recommended to use it while sleeping.

We accept several payment methods, including PayPal and major credit cards (Visa, MasterCard, American Express, and Discover)

Pulse Flow:

How it works: Oxygen is delivered in bursts when you inhale.

Pros: More portable, energy-efficient, ideal for mild needs.

Cons: May not be enough for those with higher needs or irregular breathing.

Continuous Flow:

How it works: Oxygen is delivered continuously.

Pros: Steady supply, ideal for higher or consistent needs.

Cons: Uses more battery, heavier.

Click here to get: extra accessories