Half Mask, elastomeric, with dual cartridge connectors. Large. One per box. Cartridges not included All parts are replaceable, extending the useful life of the respirator Made of extremely soft non-allergenic elastomer for comfort and fit The 5500 Series incorporates the comfortable and efficient design of the popular 7700 series half mask with the low cost and convenience of a disposable Item: Half Mask Respirator Facepiece Material: Thermoplastic Elastomer Half Mask Suspension Type: Standard Head Harness Material: Thermoplastic Elastomer Cartridges Included: No Disposable/ Reusable: Reusable Mask Size: M Typical Application: Agriculture, Chemical, Food Services, Government, Manufacturing, Municipal Respirator Connection Type: Threaded Configured For: Dual Cartridge