Filter producers can no longer mask poor quality

The first quality standards for pollution filter masks will take effect on March 1 in a bid to regulate the rapidly growing domestic market.

The Group Standard on Protective Masks against PM 2.5 was released on Jan 18, with the goal to regulate filter efficiency. The standard will also ban the use of cancer-causing aromatic ammonia in the fabric and list the details of domestic producers.

PM 2.5 refers to particulate matter with a diameter of less than 2.5 microns that is hazardous to human health.