The flexible silicone plugs seal the O2 Curve exhalation valves to create bidirectional filtration. We recommend using the Valve Plugs in combination with the Max Air Filters for improved breathability.
Wearing a respirator protects you against the exhaled airborne droplets of those around you – installing the new O2 Curve Exhalation Valve Plugs allows you to protect yourself, and those around you as well.
Upgrading your O2 Curve with Valve Plugs makes the product safe for travel, and adherent to airline mask guidelines.
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