- Can I remove the valve from the mask?
- How long can the mask be used for?
- How often do I need to change the filter?
- What does the valve do?
- What materials and coatings are used in both of the BASIC & PRO masks?
- When will other patterns be available?
- Do you sell the Non-Valve to your distributors?
- Do the PRO and Non-Valve have the same sizing?
- Do you sell the Non-Valve mask in Amazon or other marketplaces?
- Does the Non-Valve mask meet FFP2 standard of protection?
- How long does the mask last for?
- Is it washable?