One of the most used antennas in mobile devices is planar inverted F antenna (PIFA). PIFA can be design in dual band frequencies due to the coverage of the wireless service in a mobile device that requires a multiple frequencies. However. the consideration of technical operation has to be combined with an evaluation of the antenna radiation impact on the users. https://parisnaturalfoodes.shop/product-category/org-tea-tree-deodorant-spray/