Are systems interrelated and/or dependant?

Does one process feed another? – (or several others with an influence on filtration application?
Do combined processes generate reactive situations? – (are the products of interaction considered in specifying filtration products?)
Are combined ventilation strategies in effect? – (are process intake or exit flows mixed?)
Are HVAC applications related to the manufacturing process requirements? – (do office heating and cooling systems interact with manufacturing systems?)

Is more than one facility or location involved?

Are the filtration needs comparable? – (is there an economy of scale for inventory or storage?)
Is responsibility focused? – (is one department or manager responsible for the entire organization?)

Have maintenance implications been considered?

Are there sufficient resources to maintain the filtration applications properly? – (are long life filtration products a better alternative investment?)
Is training and education an element in the staff? – (can they trouble shoot and service the applications properly?)
Have change out cycles been optimized? – (is there knowledge and equipment in place to minimize usage?)
Have multi stage systems been closely reviewed? – (has pre-filtration in stages been questioned and quantified?)

1. Define Air Filtration Objectives
2. Identify Contaminants to be Removed
3. Understand Operational Constraints
4. Consider Available Options
5. Checklist