The M-25D series allow for maximum flexibility for your filter configuration needs. These pass-through style units include a large filter access door which then makes a variety of filter combinations possible, and makes filter maintenance/changes very simple.
The M-25D HEPA unit features a four inch pleated, Merv 8, industrial pre-filter which catches the larger particles, extending the life of the second stage, Merv 15, multi-pocket bag filter. The final stage of filtration is a 99.97% efficient HEPA after filter. Our disposable filters are easy to service and provide for simple, low-cost maintenance.