1-6L dedakj oxygen concentrator for home use

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1-6L oxygen concentrator, oxygen purity up to 90%.
product benefits and features:
Several filters and high-grade France Molecular Sieve guarantee oxygen purity
Quiet operation with high quality German conpressor, Ideal for user while sleeping
Sustainable steable working with high oxygen purity
Sensitive alarm system to notice the user if anything wrong
emit negative ion 6000000/CM3 per second
Clear display with LED screen and easy controls by remote
Compact construction gives the O2 concentrator small size
lightweight, which can be moved to anywhere easily
Efficient power consumption and low maintance