1. Oxygen concentration up to standard (93% ± 3%) in 24 hours of uninterrupted work;
2. Long-term stability of oxygen concentration and long-term operation and reliability, the life cycle of the oxygen concentration attenuation of less than 8%;
3. With an immutable cumulative timing function, to facilitate the provision of regular maintenance
4. Provide professional oxygen therapy and professional regular maintenance services
Weinan Chaoyang Street, Forestry Building, Block B, first floor Huiyuan community service station next door to a store selling medical-grade oxygen concentrators.