Face mask Refil FFP2 3M 531 with valve – KN95
Folding respirator with exhalation valve up to 10x MAC/MEL, against solid and liquid aerosols, FFP2 NR.
Filter type: FFP2 = KN95 = N95
Filter protection: 95.5% protection filter against viruses.
Patented Refil Airflow valve for easier breathing.
Producer: Cerva a.s. – Czech Republic — much better than Chinese made face masks.
Usage: Industry, Medical Institution.