What are the patented technologies of Haier's self-cleaning air conditioner?

Haier's self-cleaning air conditioner has four patented technologies. First, the condensed water technology is 30% more than that of competing air conditioners, and the cleaning is more thorough. The second is the cold expansion technology, which uses frosting to peel off the dirt and dust of the evaporator. The third is the sapphire blue coating, which improves the hydrophilicity by 50% and the water flow speed by 20%. The fourth is bacteriostatic technology, with a bacteriostatic rate of 99.99%. Haier's self-cleaning air conditioner is professional and reliable.