Note : This is a supplementary medical equipment and is not intended for serious disease or those who stay alive solely on medical oxygen.<br /><br />Features:<br /><br />1.Concentrations up to 90%、 the flow can be adjusted from 1L to 5L.<br /><br />2.excellent filtering performance.<br /><br />3.Intelligent control is convenient to use.<br /><br />4.Mute design more comfortable、less than 45 db.<br /><br />5.Add Shockproof mat more secure.<br /><br />6.Bacteria filter oxygen more safe.<br /><br />7.Remote control operation more convenient.<br /><br />8.Oxygen stable.<br /><br />9.Small volume、 convenient to carry.<br /><br />10.Timing function.