Yes, regular PTAC maintenance plays a vital role in improving the indoor air quality. The system, after getting a year-round exposure to various impurities like dust, allergens, and pollutants, accumulates in the internal components of the system, like filters, vents, and coils, causing the roomers to inhale contaminated and polluted air, causing various respiratory diseases like asthma, bronchitis and other airborne diseases. Professional PTAC maintenance ensures thorough cleaning of the internal components using modern techniques like steam cleaning, ensuring cleaning of the system without the use of chemicals. This ensures the smooth flow of clean and fresh air, improving the indoor Air Quality Index (AQI), leading to a happy and peaceful indoor lifestyle.