Precisely Why Must You Wear An Air Pollution Mask? 

Disposable face masks as well as respirators are meant for single-use and may never be shared, washed or poisonous. So if your mask or respirator gets damaged, soiled or when you have difficulties breathing on, it should be discarded and replaced with a fresh one. Surgical masks need to have a filtration efficiency of eighty percent or higher, and N95 respirators needs to have a purification efficiency of 95 percent. https://www.emailmeform.com/builder/emf/produkt/oxybreath-pro-reviews