ࡱ> qsp#` bjbj\.\. 4d>D>D<0<0<0<0X0 =X1\1\1\1\1\1\1\1<<<<<<<$=h5@P<\1\1\1\1\1<\1\1<646464\12\1\1<64\1<646464\1L1 <03:648<0=64@3X@6464@J4\1\164\1\1\1\1\1<< 4\1\1\1=\1\1\1\1 DD TJ   TABLE 403.3 REQUIRED OUTDOOR VENTILATION AIR OCCUPANCY CLASSIFICATIONESTIMATED MAXIMUM OCCUPANT LOAD, PERSONS PER 1,000 SQUARE FEETaOUTDOOR AIR [Cubic feet per minute (cfm) per person] UNLESS NOTEDeCorrectional facilities Cells without plumbing fixtures with plumbing fixturesg, h Dining halls Guard stations 20 20 100 40 20 20 15 15Dry cleaners, laundries Coin-operated dry cleaner Coin-operated laundries Commercial dry cleaner Commercial laundry Storage, pick up 20 20 30 10 30 15 15 30 25 35Education Auditoriums Classrooms Corridors Laboratories Libraries Locker roomsh Music rooms Smoking loungesb,g Training shops 150 50 - 30 20 - 50 70 30 15 15 0.10 cfm/ft2 20 15 0.50 cfm/ft2 15 60 20Food and beverage service Bars, cocktail lounges Cafeteria, fast food Dining rooms Kitchens (cooking)f,g 100 100 70 20 30 20 20 15Hospitals, nursing and convalescent homes Autopsy roomsb Medical procedure rooms Operating rooms Patient rooms Physical therapy Recovery and ICU - 20 20 10 20 20 0.50 cfm/ft2 15 30 25 15 15Hotels, motels, resorts and dormitories Assembly rooms Bathroomsg, h Bedrooms Conference rooms Dormitory sleeping areas Gambling casinos Living rooms Lobbies 120 - - 50 20 120 - 30 15 35 30 cfm per room 20 15 30 30 cfm per room 15Offices Conference rooms Office spaces Reception areas Telecommunication centers and data entry 50 7 60 60 20 20 15 20 (continued) TABLE 403.3-continued REQUIRED OUTDOOR VENTILATION AIR OCCUPANCY CLASSIFICATIONESTIMATED MAXIMUM OCCUPANT LOAD, PERSONS PER 1,000 SQUARE FEETaOUTDOOR AIR (Cubic feet per minute (cfm) per person) UNLESS NOTEDePrivate dwellings, single and multipleGarages, common for multiple unitsb- 1.5 cfm/ft2Garages, separate for each dwelling- 100 cfm per carKitchensg - 100 cfm intermittent or 25 cfm continuousLiving areasc Based upon number of bedrooms. first bedroom: 2; each additional bedroom: 10.35 air changes per houra or 15 cfm per person, whichever is greaterToilet rooms and bathroomsg, h - Mechanical exhaust capacity of 50 cfm intermittent or 20 cfm continuousPublic spaces Corridors and utilities Elevator carg Locker roomsh Shower rooms (per shower head)g,h Smoking loungesb,g Toilet roomsg,h  - - 70  0.05 cfm/ft2 1.00 cfm/ft2 0.5 cfm/ft2 50 cfm intermittent or 20 cfm continuous 60 50cfm per water closet or urinalRetail stores, sales floors and showroom floors Basement and street Dressing rooms Malls and arcades Shipping and receiving Smoking loungesb Storage rooms Upper floors Warehouses - - - - 70 - - - 0.30 cfm/ft2 0.20 cfm/ft2 0.20 cfm/ft2 0.15 cfm/ft2 60 0.15 cfm/ft2 0.20 cfm/ft2 0.05 cfm/ft2Specialty shops Automotive motor- fuel-dispensing stations Barber Beauty Clothiers, furniture Embalming roomb Florists Hardware, drugs, fabrics  - 25 25 - 8 8 1.5 cfm/ft2 15 25 0.30 cfm/ft2 2.0 cfm/ft2 15 15  (continued) TABLE 403.3-continued REQUIRED OUTDOOR VENTILATION AIR OCCUPANCY CLASSIFICATIONESTIMATED MAXIMUM OCCUPANT LOAD, PERSONS PER 1,000 SQUARE FEETaOUTDOOR AIR (Cubic feet per minute (cfm) per person) UNLESS NOTEDeSpecialty shops-continued Nail salonb, i-50 cfm intermittent or 20 cfm continuous per stationPet Shops-1.00 cfm/ft2Reducing salons2015Supermarkets815Sports and amusement Ballrooms and discos Bowling alleys (seating areas) Game rooms Ice arenas Playing floors (gymnasiums) Spectator areas Swimming pools (pool and deck area) 100 70 70 - 30 150 - 25 25 25 0.50 cfm/ft2 20 15 0.50 cfm/ft2Storage Repair garages, enclosed parking garagesd Warehouses - - 1.5 cfm/ft2 0.05 cfm/ft2Theaters Auditoriums Lobbies Stages, studios Ticket booths 150 150 70 60 15 20 15 20Transportation Platforms Vehicles Waiting rooms 100 150 100 15 15 15Workrooms Bank vaults Darkrooms Duplicating, printing Meat processingc Pharmacy Photo studios 5 - - 10 20 10 15 0.50 cfm/ft2 0.50 cfm/ft2 15 15 15 For SI: 1 cubic foot per minute = 0.0004719m3/s, 1 ton = 908 kg, 1 cubic foot per minute per square foot = 0.00508m3/(s m2), C = [(F) -32]/1.8, 1 square foot = 0.0929m2. a. Based upon net floor area. b. Mechanical exhaust required and the recirculation of air from such spaces as permitted by Section 403.2.1 is prohibited (see Section 403.2.1, Items 1 and 3). c. Spaces unheated or maintained below 50F are not covered by these requirements unless the occupancy is continuous. d. Ventilation systems in enclosed parking garages shall comply with Section 404. e. Where the ventilation rate is expressed in cfm/ft2, such rate is based upon cubic feet per minute per square foot of the floor area being ventilated. f. The sum of the outdoor and transfer air from adjacent spaces shall be sufficient to provide an exhaust rate of not less than 1.5 cfm/ft2. g. Transfer air permitted in accordance with Section 403.2.2. h. Mechanical exhaust is required and recirculation is prohibited except that recirculation shall be permitted where the resulting supply air stream consists of not more than 10 percent air recirculated from these spaces (see Section 403.2.1, Items 2 and 4). i. 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