1. CE0123/ISO13485 (sellswell in the world market.)

 2. only one in china to setfour grade filters.

 3. only one in china toadopt molecular sieve protector.

 4. oxygen purity:93%-97%.

 5. molecular sieves importedfrom USA!

 6. remote controller-eachunit has.

 7.MOQ: 10 units, 1 unit assample is ok!

 8. Packing: 1 unit packed ina carton, with pallet to fix them.