Dr. Hoffmann Allergy, Asthma, Bushfire Smoke and Bacteria Protection Mask Replacement Filters - 4 Pack. The protective mask incorporates a Ding-Filter aka a Copper Filter that is particularly beneficial for protecting you from bacteria and pollution in the air. It's one of a kind filtration technology provides relief for both acute and seasonal allergy sufferers by generating copper ions which calms the respiratory tract.
Filter Duration of Use:
Each filter can be used for 2 weeks, then washed under cold water and available to wear for a further 2 weeks.
About the Copper Filter:
The Ding-Filter (copper filter) is designed with finely woven copper wool which effectively destroys bacteria, viruses and fungi. It's one-of-a-kind filtration technology provides relief for both acute and seasonal allergy symptoms.
While wearing the mask, copper ions are generated by the humid breathing air. This has a calming the effect on the respiratory tract and greatly improves allergy symptoms.