https://www-nbcnews-com.cdn.ampproject.org/c/s/www.nbcnews.com/news/amp/ncna1260759
5 best quiet air purifiers of 2021, according to experts”, stated the headline in todays NBC News, and those ‘experts’ are Quiet Mark!
NBC News writer, Hanna Horvath asked Quiet Mark CEO/ Founder, Poppy Szkiler to provide detailed information on Quiet Mark’s technical assessment processes, to understand what it takes for an Air Purifier to achieve Quiet Mark certification.