3M Semimask for reusable respirator without maintenance, FFA2P3 R D filters, 4255+

Effective, easy-to-use and maintenance-free airway protection thanks to reusable respirators without maintenance 3Mtm 4000+ series. The new valve reduces breathing resistance to exhalation, to offer even greater comfort. The 4000+ series ventilator is equipped with a soft textured, non-allergic and silicone-free facial and offers gas, vapours and particulate protection. Light and balanced structure, with central expiration valve, which helps to reduce heat accumulation and ensures greater breathing ease, even at high temperatures. Integrated filters are maintenance-free: are used until the replacement program indicates that it is necessary to replace them or when the filters are clogged, and therefore to be disposed of. The adjustable bardatura makes it easily adaptable to different shapes and sizes heads. Low-profile design promotes a wide peripheral vision and the two large activated carbon filters ensure low breathing resistance. Available in four versions. Removable bag, practical hygienic storage and transport. *Resistance to the expiration of 3MTM 4000+ reduced to more than 30% for exhalation flows with peaks of 120 lpm and more than 35% for 160 lpm compared to the 4000 Series. Results measured by 3M in 2017 under laboratory conditions. Respiratory frequencies only given as an example.