FAQs

Avoid Open Flames and Smoking: Do not use the oxygen concentrator near open flames or while smoking.
Monitor Oxygen Concentration: Regularly check the equipment for alarms to ensure you're receiving adequate oxygen. Low oxygen concentration can affect both the effectiveness of the therapy and the lifespan of the concentrator.
Regular Monitoring: If you require the concentrator due to chronic health issues, consistently monitor your blood oxygen levels.

Pulse Flow: Automatically detects your breathing pattern, releasing oxygen when you inhale and stopping when you exhale.
Continuous Flow: Releases oxygen continuously, regardless of your breathing cycle.
Pulse flow is commonly used in portable devices to extend battery life.

Most oxygen concentrators operate between 30 to 60 decibels (dBA), similar to a quiet conversation or soft whispers.

No, a prescription is not required.

Our products are not FAA-approved. We recommend using them during trips, but please consult with your airline before flying.

A portable oxygen concentrator extracts oxygen from the air, delivering it as needed. It operates on both AC and DC power and is rechargeable. The device filters air, separates the oxygen, and delivers it to your lungs at the appropriate flow rate. Some models offer both continuous flow and pulse-dose settings.
Home oxygen concentrators also separate oxygen from the air but are designed for stationary use. They operate on AC power and are typically used at home. The concentrator draws in air, filters out dust and particles, separates the oxygen, and delivers it via tubing and a nasal cannula.

Yes, the batteries can be recharged using the AC power cord or the DC power cord in a car. Depending on the model, batteries can be recharged inside the concentrator or via an external charger. Recharging time varies by model and battery condition, averaging about 4 to 5 hours.

The atomization function uses specialized technology to deliver fine, mist-like particles that are easily absorbed by the respiratory system, minimizing side effects. This method is gentler on the respiratory system, as the small particles cause less damage.

Yes, the Hoynxiu portable oxygen concentrator is compatible with both AC power supplies (100-240V) and DC power supplies (12-16.8V), allowing for worldwide use and vehicle charging.

Our home oxygen concentrators are designed for continuous 24/7 operation, even during sleep.
Our light series devices feature overheat protection and will automatically stop after 4 hours of use.

You can add water as needed.

Our portable oxygen concentrator, is equipped with replaceable batteries that you can change at any time to extend usage time.

Our product is a healthcare device and does not require a prescription. If you have specific requirements for oxygen concentration or flow rate, please choose our products based on your actual needs.

Portable oxygen concentrators are compact, lightweight, and include a battery for on-the-go use, providing higher oxygen concentrations than ambient air levels.
In contrast, home oxygen concentrators are larger and heavier, designed for stationary use, and can provide higher flow rates, making them suitable for patients requiring substantial oxygen supply.

Oxygen concentrators can be categorized based on oxygen flow rate:
1-3L oxygen concentrators: Suitable for healthcare purposes, such as for pregnant women, elderly individuals, students, white-collar workers, and other mental workers. They are appropriate for daily oxygen therapy.
Oxygen concentrators larger than 3L: Suitable for disease treatment, including patients with chronic diseases (hypertension, hyperglycemia, hyperlipidemia, coronary heart disease, obesity, etc.), respiratory diseases, cardiovascular and cerebrovascular diseases, and patients with cardiopulmonary functional diseases. They are suitable for home oxygen therapy.

Regularly clean the exterior of the portable oxygen concentrator and gently wipe around the vents to remove dirt.
Clean the nasal cannula at least once a week. If used daily, it's best to replace the nasal cannula every two months. If not used frequently, replace it every three to six months.
The filter of the portable oxygen concentrator removes dust, dirt, and pollen from the air. Cleaning the filter once a month can extend the service life of the unit.

We process and ship orders within approximately 2-3 business days after purchase (excluding weekends and holidays).
Once shipped, delivery times are generally 5-7 business days for oxygen concentrator products, and 10-20 business days for machine parts.

We have a warehouse located in New Jersey.
We offer fast delivery within 3-5 days across the United States.

We use reliable logistics services. In rare cases, if you haven't received your product within 30 days, please contact us via email at support@hoynxiu.com or through WhatsApp. We will address the issue promptly.

Expedited shipping is one of our delivery services. It is the fastest option we offer, typically delivering within 5 days or less.

Currently, we offer free shipping for orders over $99 within the United States. If you were charged a shipping fee, it may be because your order was below $99 or was shipped internationally.

Typically, we ship all items in one package. However, parts and accessories may be shipped separately.

Hoynxiu offers free shipping for all devices within the United States. Accessories shipping is charged at $19.90.
For other areas, please refer to our shipping policy.

You can find our return and exchange policies here: [Return and Exchange Policies].

Please contact our customer service to check the status of your order. If the order hasn't been shipped, you can modify details such as the order number, address, email, and other information.
If the order has already been shipped, modifications cannot be made.

Please contact customer service via email to verify the current status of your order. If the order hasn't been shipped, you can request a cancellation due to personal reasons.
If the order has been shipped, cancellations are generally not supported. For details, please refer to the return policy section: [Cancel the Order].

After receiving the product, please inspect the packaging and the product along with its accessories. If you find any damage or missing accessories, contact us within 48 hours of receipt.
For damaged products, please send photos of the product packaging and the damaged parts to our email.
For missing parts, please send photos of the product packaging along with the products and accessories. Our staff will verify upon receiving your email.

The products sold on our website undergo multiple quality inspections. If you find any quality issues within 30 days of receiving the product, please contact us via email for assistance.

Each device includes a manual in the package. We also provide electronic manuals on our website. You can find them below the description of each model or click [HERE].

We offer a collection of accessories for our devices. You can look up the appropriate accessories that match your device. If you have any questions about accessories, you can contact us for assistance.

Yes! You can cancel your order anytime before the packages are shipped.

Contact our customer service, and we will cancel and refund your order.
If the package has been shipped, don't worry. You can also contact our customer service to return the package, and you will receive your refund as soon as we receive the returned products.

Yes! We offer a one-year warranty on our oxygen concentrators. For more details, please check here: [Warranty Policy].