Founded more than 40 years ago, Weikang was renamed Philips Weikang after being acquired by Philips, won the Zenith Zenness Award issued by the American Respiratory Association for 7 consecutive years, and was awarded the "Consumer Trusted Oxygen Concentrator Brand" in China in 2015. In 2017, Philips Wellcome entered into a cooperation with Meinian Health to provide more comprehensive and reliable after-sales service in the field of respiratory equipment.
 
The 5L medical oxygen concentrator Everflo imported from the United States is very popular, and promises to run stably for 25,000 hours, and its reliability is guaranteed. The appearance with a strong sense of professionalism and the level of silence second only to Asia Adapter make Everflo very competitive among similar products, and the current price is 5680 yuan.
 
The domestic 3L oxygen concentrator K3B-PH is light in weight and enough to save electricity, and the atomization, display screen, and remote control functions are very perfect, and the price of 3280 yuan is worth buying.
 
Wellcome's portable oxygen concentrator SimplyGo Mini ensures a pulse flow of 50ml while maintaining a single battery life of 4.5 hours. However, the product has not yet entered the Chinese market, and it is priced at $2,395 in the US market. The other SimplyGo has a larger pulse flow than the SimplyGo Mini, but the weight of the fuselage is nearly twice as high as that of the SimplyGo Mini, which may be slightly inconvenient to carry, and the price of 26,800 yuan is in the middle of similar products.