[labnetwork] final filter on makeup air units

[Iulian Codreanu]

Dear Colleagues,

I am trying to convince some folks that having filters placed on the 
discharge side of a cleanroom makeup air unit (MAU) is not only a good 
idea but a must.    I only have a MERV 8 and a MERV 14 on the intake 
side and I am pushing for HEPA filtration on the discharge side; your 
input carries a lot of weight and I hope you can help.

My cleanroom is "two stories tall"; the makeup air discharges into the 
mechanical space (it houses the recirculating air units that push the 
air into the bay plenum boxes) that is above the the bay and chase 
cleanroom (no raised floor, sidewall air return).

Can you please share your MAU filter configuration; it would be helpful 
to list all the filters in the unit and where they are located.

Thank you very much.

Iulian

-- 
iulian Codreanu, Ph.D.
Director of Operations, UD Nanofab
149 Evans Hall
Newark, DE 19716
302-831-2784