Adjustable1-5 Liter Compact Oxygen Concentrator, Pulse Portable Oxygen Machine for Home/Travel Use 90%+-3%,AC/DC

The Adjustable 1-5 Liter Compact Oxygen Concentrator appears to have received mixed reviews from customers. A couple of customers mentioned that they returned the product the same day they received it, expressing disappointment that the concentrator provides pulse flow rather than a Constant flow. One customer was specifically looking for a Constant flow and was dissatisfied with the pulse flow provided by the product. However, the weight of the machine was confirmed to be about 6.5lb. The Adjustable 1-5 Liter Compact Oxygen Concentrator offers the convenience of being able to select a desired liter flow rate, providing flexibility for different needs. The pulse flow feature could be beneficial for some users, offering oxygen therapy during specific times such as during physical activity, which can help Conserve oxygen and prolong battery life. The compact size and portability make it suitable for both home and travel use. However, it's important for potential buyers to Consider their specific oxygen therapy requirements and the type of flow (pulse vs. Constant) that best meets their needs before making a purchase.