Source:  facebook

Anthony Kirkley answers question about headaches from wearing mask.  He uses an OSHA approved “Air Quality Monitor” to show oxygen levels with and without a mask.  MUST WATCH – open above by clicking on facebook link.  Then click on  “see video” and unmute.   Oxygen deprivation weakens your immune system.   Wearing mask sounds like a very bad idea!

MUST WATCH ONLY 2:27 Minutes.