Thanks to integrated cartridges and filters, the maintenance-free 3M™ Series 4000+ half-masks are a unique range of ready-to-use, easy-to-use respiratory protection masks. A new, improved valve reduces exhalation resistance, and the silicone-free textured face seal is flexible and non-allergenic. A reusable bag protects your half-mask during transport or storage. Read more
Thanks to integrated cartridges and filters, the maintenance-free 3M™ Series 4000+ half-masks are a unique range of ready-to-use, easy-to-use respiratory protection masks. A new, improved valve reduces exhalation resistance, and the silicone-free textured face seal is flexible and non-allergenic. A reusable bag protects your half-mask during transport or storage.
