Products
How does an oxygen concentrator work?
The oxygen machine pulls in room air, removes nitrogen, and provides oxygen-enriched air through a nasal cannula.
Can I use the oxygen concentrator every day?
Yes. The device is designed for daily use when operated according to the user manual.
What is the difference between pulse flow oxygen concentrator and continuous flow oxygen concentrator?
Pulse flow delivers oxygen when you inhale, while continuous flow provides a steady stream. Each suits different user needs and lifestyles.
How loud is the machine during operation?
The oxygen concentrator produces a low, steady operating sound similar to a household appliance. Our model SJ-OX1A is about 42dBs, and SJ-OX1C is around 48 dBs.
Which model is with battery?
SJ-OX1C is with battery, it is portable oxygen machine, you can use it both indoors and outdoors.
Can I use the concentrator in my car?
Our model SJ-OX1A and SJ-OX1C both can use in the car by car charger.
Is the oxygen concentrator safe to use at home?
Yes, when used as directed. Keep it away from open flames, smoking areas, and heat sources.
Does the device come with accessories?
Standard packages typically include power cables, nasal cannula, and basic accessories. Exact contents are listed on the product page.
Can I replace the battery myself?
Yes. Portable units allow battery replacement without special tools. Please refer to the product page to see the details.
How long does the battery last on a full charge?
Battery life depends on the flow setting and usage conditions. Detailed estimates are provided on each product page.
Can multiple people use the same machine?
For hygiene reasons, we recommend each user have their own nasal cannula.
How often should filters be replaced?
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.
Is humidification required?
Some users prefer added humidity for comfort. Model SJ-OX1A home oxygen concentrator supports external humidifier bottles.
Service
What kind of warranty do you offer?
We offer 30-day return, 1-year replacement and 2-year warranty. Please refer to our warranty policy for more details.
How do I request warranty service?
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 customer hotline for support: +1 (833) 443 4336
Do you provide technical support after purchase?
Yes. Our support team is available to help with setup, usage, and basic troubleshooting.
How long will it take to get my orders?
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.
Can you help me choose the right model?
Absolutely. Our team is happy to help you select a model based on your usage needs.
Can I cancel my order after placing it?
Orders can be canceled if they have not yet shipped. Contact us as soon as possible.
Can I change my order details after checkout?
We may be able to update shipping details before shipment. Contact us as soon as possible if there is anything need to change.
What if I lose my user manual?
Contact us and we’ll send you a digital copy.
Can I return the product if it doesn’t meet my expectations?
Yes, eligible products may be returned within the return period outlined in our return and refund policy.
Do you sell replacement parts?
Yes. Filters, batteries, and accessories are available for purchase separately.
Shipping
Do you ship overseas?
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.
How long will it take to get my orders?
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.
When will my order be shipped?
Orders are usually processed within 1–2 business days.
Do you offer free shipping?
We offer free shipping if order amount is over $50.
Which carriers do you use?
We work with major carriers such as UPS, FedEx, and USPS.
Can I track my order?
Yes. Once shipped, you’ll receive a tracking number by email.
Do you ship to P.O. boxes?
We don't accept P.O. boxes address.
How are products packaged?
Products are carefully packed to prevent damage during transit.
Do you ship lithium batteries safely?
Yes. All battery shipments follow carrier and safety regulations.
Will I be notified when my order ships?
Yes. You’ll receive an email confirmation with tracking details.