| Process | Type of Hood or Slot | Average Intake Velocity (FPM) |
| Aluminum Furnace | Enclosed Hood, Open One Side Canopy Hood |
150-200 200-250 |
| Brass Furnace | Enclosed Hood, Open One Side Canopy Hood |
200-250 250-300 |
| Chemical Laboratory | Enclosed Hood, Front Opening Down Draft, Table Type |
100-150 150-200 |
| Degreasing | Canopy Hood Slotted Sides, 2? ? 4? Slots |
150 1500-2000 |
| Electric Welding | Portable Hoods, Open Face Open Front Booth |
200-250 100-150 |
| Foundry Shakeout | Down Draft, Grill Table Open Front Booth |
250-450 150-200 |
| Flour, Grain, Wood Dust | Canopy Hood Side Slots, 3? ? 4? |
500 2000-2500 |
| Kitchen Ranges | Canopy Hood | 125-175 |
| Metal Spraying | Open Front Booth | 150-200 |
| Paint Spraying | Open Front Booth | 100-175 |
| Paper Machine Drying | Canopy Hood | 250-300 |
| Pickling Tanks | Canopy Hood Slotted Sides |
200-250 250 CFM per sq. ft. of tank surface |
| Plating Tanks | Canopy Hood Slotted Sides |
225-250 250 CFM per sq. ft. of tank surface |
| Rubber Macerator | Canopy Hood Slotted Sides, 2? ? 4? Slot |
200-250 2000-2500 |
| Steam Tanks | Canopy Hood | 125-175 |
| Varnish Tanks | Canopy Hood Slotted Sides, 2? ? 4? Slot |
225-300 2000-2500 |