|  | Size / Width |  | 4-foot | 6-foot | 
    
    
      | Dimensions | Exterior dimensions W x H x D | mm/in | 1300 x 1568 x 800 / 51.2 x 61.8 x 31.5 | 1900 x 1568 x 800 / 74.8 x 61.8 x 31.5 | 
    
      | Interior dimensions W x H x D | mm/in | 1200 x 780 x 630 / 47.2 x 30.7 x 24.8 | 1800 x 780 x 630 / 70.9 x 30.7 x 24.8 | 
    
      | Shipping dimensions W x H x D | mm/in | 1410 x 1730 x 925 / 55.5 x 68.1 x 36.4 | 2010 x 1730 x 925 / 79.1 x 68.1 x 36.4 | 
    
      | Working height of front window | mm/in | 250 / 10 | 250 / 10 | 
    
      | Maximum opening height of front window | mm/in | 535 / 21 | 535 / 21 | 
    
    
      | Weight | Net weight | kg/lbs | 200 / 441 | 280 / 617 | 
    
      | Shipping weight | kg/lbs | 225 / 496 | 315 / 694 | 
    
    
      | Electrical data | Voltage | V | 230 | 
    
      | Frequency | Hz | 50 / 60 | 
    
    
      | Filter specification | H14 HEPA EN 1822, 99.995% @ MPPS, 99.999% at @ 0.3 µm | 
    
      | Certification | NSF/ANSI 49, UL, CE | 
    
    
      | Ergonomics | Lighting power | W | 20 | 40 | 
    
      | Average illumination | Lx | 800 (SST) 900 (SmartCoat)
 | 950 (SST) 1050 (SmartCoat)
 | 
    
      | SmartPort access | Two 3” plugged cable ports, one on each side wall | 
    
      | Receptacles | Two standard single receptacles, located on rear wall, right and left sides | 
    
      | Service valves | Up to 6 total (3 on each side wall) | 
    
    
      | 10-inch front opening | Sound pressure level | dB (A) | <63 | <65 | 
    
      | Energy consumption, operating set point | W | 200 | 400 | 
    
      | Energy consumption, night set-back mode | W | 70 | 120 | 
    
      | Heat output, operating mode (non-vented) | BTU/hr (W) | 683 (200) | 1366 (400) | 
    
      | Heat output, night set-back mode (lights off, non-vented) | BTU/hr (W) | 239 (70) | 410 (120) | 
    
      | Exhaust/inflow air volume | cfm (m³/h) | 344 (585) | 517 (878) | 
    
      | Exhaust volume, thimble ducted | cfm (m³/h) | 448 (761) | 672 (1141) |