If the standard ducts become soft or broken from overuse or accidents, they can be replaced with new standard ducts without any problems.
Suiden duct extensions can be a valuable asset if you cannot place the spot cooler close to where it is needed, or if you want to lead the hot exhaust air out, away from the area being cooled. The cool air extension duct is 5m long, and the hot exhaust air extension duct is 4m long.
The standard filter is suitable for most work places. However, if you are using it in a very dusty environment it would be recommended to use the heavy duty dust filter to increase the life length of the spot cooler.
If you use it in a car factory or similar place with high concentrations of oil mist, the optional oil mist filter for spot coolers is highly recommended.