1.？ Mitsubishi Heavy Industries: Japanese brand, stable, efficient and low noise.
2.？ Daikin: Japanese enterprise, high efficiency filtration, low noise and energy saving.
3. Panasonic: Japanese brand, with high filtration efficiency, low noise and energy saving.
4. Honeywell: American enterprise, stable, efficient and low noise.
5.？ Hitachi: Japanese enterprise, high efficiency filtration, low noise and energy saving.
6. Yuanda: China brand, stable, efficient and low noise.
7. Braun: American enterprise, with high filtration efficiency, low noise and energy saving.
8. Sende: German enterprise, stable, efficient and low noise.
9. Edith: French enterprise, with high filtration efficiency, low noise and energy saving.
10. Green Island Wind: China brand, stable, efficient and low noise.