3M™ SecureFit™ 3700 SF3702XSGAF-BLU-EU Overspectacles - Blue Temples, Brow Guard, Scotchgard™ Grey Lens - Pack of 20 MDH56QCC9LA3AN Comfort is maximised with three

Comfort is maximised with three user selectable flow rates and controlled airflow

Operating time between 10 to 13 hours when used with new particle filter and at the standard airflow setting

The filter can be changed quickly and easily by hand

1000 channels

3M™ SecureFit™ 3700 SF3702XSGAF-BLU-EU Overspectacles - Blue Temples, Brow Guard, Scotchgard™ Grey Lens - Pack of 20 MDH56QCC9LA3AN Comfort is maximised with threePack of 20 3M SecureFit 3700 SF3702XSGAF BLU EU Blue Temples, Brow Guard, Scotchgard Grey Lens Adjustable Ratchet Temples PDT (Pressure Diffusion Temple) Technology helps diffuse pressure over the ear for a comfortable and secure fit Scotchgard Anti Fog Coating (up to 25 washings with water) Polycarbonate Lenses absorb 999% of UVA and UVB rays Meets the requirements of EN166 2001 Standard as an Impact Rated Spectacle Contoured brow guard rests