Humidity in breath makes cotton masks better at stopping Covid 19 s spread, study finds

Subscribe to our YouTube channel for free here: Cotton masks can be more effective at halting Covid19s spread than synthetic masks, a new study by the US National Institute of Standards and Technology (NIST) showed. Researchers said cotton fabrics are nearly 35 per cent better at capturing particles when made slightly moist by human breath, but synthetic masks performance did not improve with humidity. Support us: Follow us on: Website: Facebook: Twitter: Instagram: Linkedin: