Features of V-COOL Portable air conditioners: 1. Self-evaporative system helps to save energy and protect environment. 2. The condensing water is recycled to improve cooling efficiency. 3. Dual-motor setup makes super match. 4. Silver-painted housing looks luxury. 5. Reversible LCD, indicating temperature and operation status. 6. Anti-frozen function under cooling. 7. Self-diagnosis function and 24 hour On/Off timer. 8. Vertical louvers swing automatically. 9. Over-cold protection, three minutes restart delay function. 10. Two filters design. Active carbon filters optional. 11. Capacity range:5000btu, 7000btu, 90000btu,12000btu,15000btu,18000btu. 12. With CE, CB,RoHS,ETL approval.