AirQueen Nano Mask Options
Soaking alternatives of pH 2 and pH 13 were well prepared by diluting 37% HCl and NaOH pellets respectively and altered by an Eutech pH 700 m. A pH 7 soaking Option was well prepared through the use of de-ionized drinking water. To each soaking Answer, pre-weighed biodegradable masks with mass M0 were being submerged in the answer and remainin