Type 2 vacuum filter (dust and toner) for 3M Electronic Vacuum (MCM #108-535)
I replaced the original equipment type 1 filter - meant for general dust and dirt - with this type 2. Much better filtering and no loss of suction. I've used one for over a year without a clog.
108-3660 - High Efficiency Replacement Filter
Type 1 filter (small particle) for 3M electronics vacuum (MCM# 108-535)
I have used MCM for many years and would give high recommendation for getting the job done right.