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

The 7-nozzle boom offers 12' of total spray coverage and the Fimco-exclusive manifold allows you to easily fine tune your spray pattern

MF12H (227109) 4284929M2

and precision fit

97% minimum filter efficiency for all particulates

3M Secure Click Half Mask Respirator Size:M Features a replaceable pH electrode3M 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.