There's two important components to HVAC cleaning: breaking contaminants loose, and assortment of contaminants. Dust and debris can accumulate to the louvers and obstruct the airflow, decreasing the cooling efficiency within your unit. Below are a few straightforward ways to clean the ventilation louvers on your Hisense moveable air conditioner: https://dante5cmvc.tkzblog.com/30866648/air-conditioner-cleaning-methods-in-buraidah-fundamentals-explained