3M 1804 Vflex N95 Particulate Respirator Surgical Mask, Box of 50 Professional Lab Equipment The rectangular (MCM‑335/336) and hourglass

The rectangular (MCM‑335/336) and hourglass (MCM‑337/338) shapes cater to different ergonomic needs: the rectangle provides uniform surface area

• Replacement pads (12 pack) available 156

• Ideal for embryology

Their rectangular shape ensures that the patient's arm is comfortably positioned

The Z4 Zoom is the perfect choice for demanding professionals performing critical inspections

3M 1804 Vflex N95 Particulate Respirator Surgical Mask, Box of 50 Professional Lab Equipment The rectangular (MCM‑335/336) and hourglassThe 3M VFlex N95 Particulate Respirator, model 1804 is a NIOSH approved surgical mask that provides protection against airborne particles. It's pleated design unfolds, allowing for expansion providing more surface area for breathability. In addition, the pleats flex when you are speaking without disturbing the position of the mask on your face. The tabbed design also helps model 1804 to seal, and maintain its position. Manufacturer: 3M Model: 1804