WSJ put eight N95 and KN95 masks to the test and found not all tested at the required 95% filtration efficiency. To watch experts’ tips for spotting a lesser quality mask, visit https://www.wsj.com/video/series/in-depth-features/what-to-look-for-in-a-covid-19-mask-not-all-n95s-are-created-equal/2D0DD728-FB51-40D7-9547-F7A77C4C467F
Envo Mask
Envo®mask is manufactured by Sleepnet Corporation, a world leading producer of sleep apnea and non-invasive ventilation masks. All our masks are made in the USA with US and globally sourced materials. For more than 25 years, Sleepnet has been manufacturing masks in Hampton, NH, and selling them worldwide in over 50 countries.