<br><b>DESIGNED TO INTERNATIONAL TESTING STANDARDS:</b><BR><br>MEO? is a distinctive protective mask designed specifically for human health. Originating in New Zealand, it combines elements of nature, technology and innovation and will contribute towards a healthier world.<BR><br><b>Sizing instructions:</b> 290mm – 350mm (distance from ear to ear)<BR><br><b>Contains: </b>1 x Mask cover & 2 x MEO? Helix? Filters