To use the dryer for moisture, uncle sugar and that the students know to khan tha together with others knowing what must be the photographer. Be aware of the risk to occur in Ta jobs.
Using a humidifier for sugar and students also recognize the importance of working with other people to know what I want. Be aware of the risks that arise at work.
The use of steam to the relief I Tan system and importance, also known as students work with others that is what you need. Can know the risk will occur in the work.