Global Plasma Solutions
... that a class-action lawsuit against Global Plasma Solutions claimed that their air-purification devices used in schools did not function as advertised and were potentially harmful?
... that a <a href="./Class_action" id="mwAuw" rel="mw:WikiLink" title="Class action">class-action lawsuit</a> against <b id="mwAu0"><a href="./GPS_Air" id="mwAu4" rel="mw:WikiLink" title="GPS Air">Global Plasma Solutions</a></b> claimed that their air-purification devices used in schools <a href="./False_advertising" id="mwAu8" rel="mw:WikiLink" title="False advertising">did not function as advertised</a> and were potentially harmful?