MF12H (227109) 4284929M2

Features a replaceable pH electrode with a cloth junction for rejuvenation of the electrode

Weighs 170 lb

Custom printed marking flags from Blackburn can be personalized with your company name

3M Secure Click Half Mask Respirator Size:M MF12H (227109) 4284929M23M Secure Click Half Mask Respirator HF 800 features a speaking diaphragm, to allow speech without removing the mask. The innovative "Secure Click" namesake applies to the easy swap filters, yet could also apply to the one touch seal check, giving you confidence that your mask and filters are properly in place. You'll also breathe easier, literally, with 3M's first of its kind quad flow cartridges.