The story appears on

Page A4

March 19, 2014

GET this page in PDF

Free for subscribers

View shopping cart

Related News

Home » Metro » Society

Masking the truth

Face masks that promise protection against the hazards of air pollution might not be as effective as they claim.

In recent tests, 23 of the 38 batches examined were found to be less effective at blocking particles than advertised, the Shanghai Quality and Technical Supervision Bureau said.

Masks made by Shanghai Dasheng, a sanitary products producer, on sale at a Metro supermarket in Putuo District were found to have no filtering effect at all, the bureau said.

Only slightly better were the masks produced by Ludun and sold on, which were found to have a filtering efficiency of just 10 percent. China’s quality standards on face masks cover only products designed for clinical or industrial use, and not those intended for personal use.


Copyright © 1999- Shanghai Daily. All rights reserved.Preferably viewed with Internet Explorer 8 or newer browsers.

沪公网安备 31010602000204号

Email this to your friend