Item#:0302011• Three layers, each layer is made of soft Polypropylene (P.P.) inner layer, reduce the fiber drops and increase the wearing comfort.
• The filter layer is made of high efficient melt blown web which resists dust and oil-free particle.
• Easy-breathing exhalation valve
• Cool latex-free cloth head straps for comfortable wearing.
• High efficient active carbon cloth absorbs nuisance organic acid vapors.