The oxygen machine pulls in room air, removes nitrogen, and provides oxygen-enriched air through a nasal cannula.

Yes. The device is designed for daily use when operated according to the user manual.

Pulse flow delivers oxygen when you inhale, while continuous flow provides a steady stream. Each suits different user needs and lifestyles.

The oxygen concentrator produces a low, steady operating sound similar to a household appliance. Our model SJ-1600AC is about 48dBs, and SJ-1300AC is around 45dBs.

SJ-1300AP/AC and SJ-1600AC/AP are all with battery, they are portable oxygen machines, you can use it both indoors and outdoors.

Our model SJ-1300AP/AC and SJ-1600AC/AP all can use in the car by car charger.

Yes, they are safe to use when used as directed. Keep it away from open flames, smoking areas, and heat sources.

Standard packages typically include power cables, battery, nasal cannula, and basic accessories. Exact contents are listed on the product page.

Yes. Portable units allow battery replacement without special tools. Please refer to the product page to see the details.

Battery life depends on the flow setting and usage conditions. Detailed estimates are provided on each product page.

For hygiene reasons, we recommend each user have their own nasal cannula.

Filter replacement depends on usage and environment. Replace it when you can see the filters is yellowing or dirty. We recommend to change the filter every 3-6 months.

We suggest you to use the continuous flow portable oxygen concentrators all night long, because the continuous type provides stable oxygen stream, which will not effected by your breathe.

We offer 30-day return, 1-year replacement and 2-year warranty. Please refer to our warranty policy for more details.

Simply contact our customer support team with your order number and issue description. You can write e-mail to: service@portaoxy.com. Or you can call our toll free customer hotline for support: +1 (833) 443 4336

Yes. Our support team is available to help with setup, usage, and basic troubleshooting.

It depends on where you are. Orders processed here will take 5-7 business days to arrive. Overseas deliveries can take anywhere from 7-16 days. Delivery details will be provided in your confirmation email.

Absolutely. Our team is happy to help you select a model based on your usage needs.

Orders can be canceled if they have not yet shipped. Contact us as soon as possible.

We may be able to update shipping details before shipment. Contact us as soon as possible if there is anything need to change.

Contact us and we’ll send you a digital copy.

Yes, eligible products may be returned within the return period outlined in our return and refund policy.

Yes. Filters, batteries, and accessories are available for purchase separately.

Yes, we ship all over the world. Shipping costs will apply, and will be added at checkout. We run discounts and promotions all year, so stay tuned for exclusive deals.

It depends on where you are. Orders in the U.S. processed here will take 5-7 business days to arrive. Overseas deliveries can take anywhere from 7-15 days.

Orders are usually processed within 1–2 working days.

We offer free shipping if order amount is over $50.

We work with major carriers such as UPS, FedEx, and USPS.

Yes. Once shipped, you’ll receive a tracking number by email.

We don't accept P.O. boxes address. Please leave your detailed address when order the machine.

Products are carefully packed to prevent damage during transit.

Yes. All battery shipments follow carrier and safety regulations.

Yes. You’ll receive an email confirmation with tracking details.