• Oxygenerator ×1
• Battery ×2
• Nasal oxygen tube ×3
• Fliter cotton ×5
• Carrying bag×1
• Quick use gudide×1
• User Manual×1
• Warranty card×1
• Charging Cable×1

1.1 Shipping Fee

All orders qualify for free shipping.

Delivery Time

Delivery time is calculated as follows:

Delivery Time = Warehouse Processing Time + Shipping Time

Shipping Times

United States Standard Shipping: 3-7 business days

1.2 Shipping Zones

Free Shipping: Available for the contiguous United States (49 states), excluding Alaska and Puerto Rico.

Exclusions: We do not ship to Alaska, Hawaii, Puerto Rico, American Samoa, Guam, Northern Mariana Islands, or the Virgin Islands.

Policy Note: We do not support delivery to PO Box, APO, FPO, DPO, or military addresses.

Undamaged products can be returned for a full refund within 30 days of purchase, excluding corporate purchases or bulk orders, which may not be refundable.

Conditions for Returns:

• Returns must include all accessories.
• Items must be returned in their original packaging.
• For non-quality-related warranty claims, the buyer is responsible for shipping costs.
• Beoka refunds only the cost of the product itself for non-quality-related warranty claims.
• Returns may be rejected if the product does not meet the above requirements.
• A small processing fee may apply to non-quality-related returns.

Note: Refund requests for the 30-day money-back guarantee expire 30 days after opening a warranty claim. Requests for refunds for non-quality issues are not processed after this 30-day window.

Q: What is the working principle of the oxygen concentrator?
A: The oxygen concentrator uses air as the raw material and separates high-concentration oxygen from the air through an internal molecular sieve adsorption and desorption process. Oxygen production does not require additional raw materials and does not generate waste. It is known for its simple operation and convenience.

Q: Is the product medical grade?
A: A medical-grade oxygen concentrator typically has an oxygen output of 3 L/min or more and an oxygen concentration of over 90%. This product provides an oxygen output of approximately 2 L/min with an oxygen concentration of over 90%. It is classified as a health care product, suitable for daily wellness use by ordinary people and for alleviating oxygen deficiency in high-altitude areas.