Static Free Space Type is a pair of ionizer bars which simultaneously and alternatively emit positive and negative ions. Due to this technology, it is possible to create a large space that is static-free and also provides a countermeasure against dust. This static-free space can be as huge as 20' x 10' x 13'. By adding more ionizers this space could be even larger and cover the whole factory. For many applications, this works as a "Room-Less Clean Room"® which means that the user could save the costs to build and maintain a clean-room. This system works without air blow or moisturization.