Do you have any problems with smoke or dust particles? Do you want to enjoy the outdoor life at ease? Moving air purifying respirator? It can add to the heat burden.
If those problems concern you, then take a look at our Activated Carbon Dustproof. Activated carbon included, ideal for filtering dust. A must-have for cycling, jogging, hiking and other outdoor activities.
Normally, one filter is expected to be used for up to 30 days. However, it is recommended to change the filter at any time during flu or heavy pollution periods.