Air Cooler Cleaning and Maintenance Services
The recommended cleaning interval is twice per annum ( once every 6 months ).
As for those air coolers surrounded by extreme environment (oily, dusty especially those polluted air in industrial area), the cleaning service interval might be once every 3 months.
Cleaning of air cooler is must for the sake not only cooling performance, more importantly is the hygiene and healthy issue, the inside of air cooler is occupied with water and high humidity, it will favour the grow of mold and bacteria if without schedule cleaning!
Here is one of the example of Air Cooler without any cleaning for years...
*The content of the video might be disturbing, please do not watch if you feel uncomfortable