Store between -20 degrees C & +35 degrees C relative humidity less than 85%. For medical use. Fitting Instructions: Prior to Use: Check condition of mask. If visibly damaged, discard mask. Put loops around ears. Adjust mask over nose & under chin. Press forefingers down on both sides of nose. Check for snug fit & comfort. Indications for Use: This surgical facemask is a single use disposable device with a hydrophilic plastic coating on the outer layer (active ingredient: citric acid 2%, a pH lowering agent), and a second inner layer treated with metal ions (active ingredients: copper 1.6% and zinc 1.6%, which forms ionic bonds with negatively-charged side groups on influenza viruses).
Always refer to the actual package for the most accurate information