ventilation rate procedure Effective Minimum Rates Daycare sickroom (25p) 10 0.18 430 17.2 Univ/Col laboratory (25p) 10 0.18 430 17.2 Central laundry rm (10p) 5 0.12 170 17.0 Res dwelling unit (5p) 5 0.06 85 17.0 Res corridor (-) 0 0.06 60 NA Occupancy category (default density/1000 ft²) Std 62.1-2007 Vbz cfm Effective cfm/p Check Standard for complete list of rates New rates and breathing-zone OA flow Rp cfm/p Ra cfm/ft 2 2007: Added some occupancy categories/rates, for example ….ventilation rate procedure Effective Minimum Rates Office (5p) 100 20.0 85 17.0 Classroom (ages 5-8) (25p) 375 15.0 370 15.0 Lecture classroom (65p) 975 15.0 550 8.5 Retail sales (20p) 300 15.0 270 14.0 Auditorium (150p) 2250 15.0 810 5.4 Occupancy category (default density/1000 ft²) Std 62-2001 Vbz cfm Effective cfm/p Std 62.1-2007 70% of OA rates drop 30% stay same or rise Comparison of breathing-zone OA flow Vbz cfm Effective cfm/p.non-attainment areas ( future ) Ozone (8-hour) US EPA AQS Database JanuFuture: Addendum 62.1c require 40% air cleaners in many more locations.non-attainment areas Ozone (8-hour) US EPA AQS Database Janu6.2.1 OA Treatment: Need 40% air cleaner where 1-hour peak exceeds 160 ppb Fresno, Riverside, Long Beach.non-attainment areas ( future ) PM 2.5 (size ≤ 2.5 microns) US EPA AQS Database JanuFuture: Addendum 62.1c would require MERV 11 in many locations.non-attainment areas PM 10 (size ≤ 10 microns) US EPA AQS Database Janu6.2.1 OA Treatment: Need MERV 6 filter. ![]()
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