24 hours continuous oxygen concentrator concentration up to 90% 1-5l/min adjustable oxygen inhaler home air purifier copd

this oxygen concentrator is matched with new high efficient air compressor and molecular sieve imported from usa. under the same consumption.it is 80% more efficient than other models,5.4kg, 90w power consuption.now it is still the smallest oxygen concentrator with 1lpm 93% continuous flow in china. it is choice for the family who needs low oxygen therapy (less than 2lpm). the users can use it for 24*7 hours home use and short travelling.it has one year warranty