choices of hepa
it is important to consider a number of factors when selecting an air filtration system.care should be taked that the system will serve the long range needs of the building, since it is sometimes quite difficult to justify changes after the system is installed.
when filter upgrades are implemented. system balance can be affected,which could be a problem . in addition, a different filter can mean a different hardware system may be needed, getting it right the first time is much better.
even if great care is used in making the decision,future legislation may require filter ugrades that cannot now be fully anticipated , it is for this reason that making a good hardware selection is so important.
with the right hardware and some flexibility in fan capacity,future changes can be accomplished economically. all in all ,there is a great deal that can be done to ensure a good system for the building owner.
understanding some of the specific reasons for the use of air filters will be helpful,here are a few:
protecting heating cooling coils
protecting the decor of the occupied spaces
reducing building maintenance
limiting ductwork fire hazards
protecting the general well-being of building occupant
removing airborne bacteria from operating rooms
the first four items deal with mechanical and material items; the last two deal directly with the protection of people . Because of these distinctions , it is incumbent to know what you want to accomplish when making filter hardware and efficiency choices.