- Disposable, maintenance-free half mask
- Twin inhalation valves and large, bonded carbon filters
- with permanently attached particulate filters
- Easy to use as no need for assembly, maintenance or
- record keeping
- Optional overspray guard (400+)
The 3M™ Maintenance-Free Reusable Half Mask 4000+ Series meet the performance requirements of the European Standard EN 405:2001+A1:2009 for valved filtering half-mask respirators for gases, vapours and particulate combinations.