1. It depends on air as its one and only material, has small consumption of electricity and low cost of producing oxygen.
2. It has stable function, adopts low voltage system, working on safe side.
3. Its current is adjustable, and supply massive oxygen and has low noise.
4. Easy in use and produce continuous supply of oxygen.
1. Model: OW-2TB, OW-4TB, OW-10TB, OW-20TB, OW-50TB. 2. Output of oxygen: 3-6, 3-15, 20-50, 50-100, 200-500. 3. Power (w): 400, 450, 1000, 2000, 3500. The above powers are for reference and related to accessories of air-compress machine. 4. Weight (kg): 29, 30, 60, 80, 160 5. Use electrical source: 220V, 50HZ / 110V, 50-60HZ, OW-2TB OW-4TB, OW-10TB, OW-20TB, OW-50TB. 6. L x W x H (mm): 300 x 350 x 600, 480 x 235 x 1060, 80 x 470 x 1080.