What is the particle size/grain size of the zeolite in the medical devices?

The PMA zeolite from PANACEO has a particle size of 4 to 7 micrometres (µm). This size is optimal to ensure effective binding of harmful substances without the particles being too small to enter the body. The particle size of 4 to 7 micrometres is well outside the nano range (1 to 100 nanometres), which means that the particles cannot enter the bloodstream. This size provides an increased surface area, which is important for binding pollutants without compromising safety.