CEILING FILTER COVERAGE
CEILING FILTER COVERAGE
| CLASS – ISO 14644 (PER FED. STND 209e) | CEILING COVERAGE |
| ISO 8 (CLASS 100,000) | 5 – 15% |
| ISO 7 (CLASS 10,000) | 15 – 20% |
| ISO 6 (CLASS 1,000) | 25 – 40% |
| ISO 5 (CLASS 100) | 50 – 100% |
| ISO 4 (CLASS 10) | 100% * |
| ISO 3 (CLASS 1) | 100% * |
| ISO 2 AND CLEANER | 100% * |
| ISO CLASS | AIR CHANGES PER HOUR | CEILING COVERAGE |
| ISO 1 | 500 – 750 | 80 – 100% |
| ISO 2 | 500 – 750 | 80 – 100% |
| ISO 3 | 500 – 750 | 60 – 100% |
| ISO 4 | 400 – 750 | 50 – 90% |
| ISO 5 | 240 – 600 | 35 – 70% |
| ISO 6 | 150 – 240 | 25 – 40% |
| ISO 7 | 60 – 150 | 15 – 25% |
| ISO 8 | 6 – 60 | 5 – 15% |
| ISO CLASS | FED-STD 209E CLASS | ≥ 0.1μm | ≥ 0.2μm | ≥ 0.3μm | ≥ 0.5μm | ≥ 1μm | ≥ 5μm |
| ISO 1 | 10 | 2 | |||||
| ISO 2 | 100 | 24 | 10 | 4 | |||
| ISO 3 | (CLASS 1) | 1,000 | 237 | 102 | 35 | 8 | |
| ISO 4 | (CLASS 10) | 10,000 | 2,370 | 1,020 | 352 | 83 | |
| ISO 5 | (CLASS 100) | 100,000 | 23,700 | 10,200 | 3,520 | 832 | 29 |
| ISO 6 | (CLASS 1,000) | 1,000,000 | 237,000 | 102,000 | 35,200 | 8,320 | 293 |
| ISO 7 | (CLASS 10,000) | 352,000 | 83,200 | 2,930 | |||
| ISO 8 | (CLASS 100,000) | 3,520,000 | 832,000 | 29,300 |
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