Thai Yamazaki is now facing a few of problems, and they seem to be not that seriously for now, but the problems will
be certainly visible soon. The exact usage is necessary. There must be proper pre-filters and all the filters should be
changed with proper cycle. With this tendency of usage pre-filters have to be changed once three months, medium
filters have to be changed once six months. If Thai yamazaki follows the proper usage and meet the cycle of change,
then Thai yamazaki will be able to check how much energy you are saving with comparison of the bills within
two months.