Concealed hidden air conditioners Energy-saving inverter hot and cold Sliding Modern R32 freon How to choose concealed air conditioners There are dozens of companies and factories that supply and produce concealed air conditioners. Sometimes there is noise about a brand or trademark, and it may not deserve this noise upon practical evaluation. Therefore, there are very important factors when choosing concealed air conditioners, including: Compressors PCB board – electronic board Thermostat Internal connections Supplier or company response to maintenance Availability and ease of obtaining spare parts for air conditioners without needing the agent Ease of maintenance, meaning any AC technician can perform maintenance Duration of air conditioner warranty