Owner manual

5
Technical Specifications
 Model: 11228 -001
 Nominal Size: 4Ft.(1.2 meters)
 Internal Dimensions: (WxDxH): 55.9″x 33.4″x 85
.8″ (1421 x 850 x 2180mm)
 Internal Size: (W x D x H): 48″x 26.1″x25.6″ (1220 x 665 x 65
0 mm)
 Average Airflow Velocity:
o Inflow:105fpm (0.53±0.015m/s)
o Downflow:66fpm (0.33±0.015m/s)
 Airflow Volume:
o Inflow: 275cfm (465m³/h)
o Downflow67%: 571cfm (956 m³/h)
 Exhaust, 33%: 275cfm (465 m³/h)
 HEPA filter efficiency: >99.99% for particle size above 0.3 microns
 Both filters are HEPA filters, H14.
 Supply filter 1: 99.998% MPPS, Exhaust filter: 99.996%@ MPPS
 Supply Filter 2: 99.998%MPPS, Exhaust filter : 99.996%@MPPS
 Both filters are HEPA filters, H14.
 Noise: ≤ 67dB(A)
 Fluorescent lamp intensity: ≥650Lu
x
 Ground resistance: ≤ 0.10Ω
 Voltage Resistance: 2 seconds no breakdown with DC1200V
 Cabinet Construction: Work area: 1.5mmstainless steel
 Frame: cold-roll steel sheets with electrostatic coating
 Working Environment: Use indoors only

Environmental temperature: 59°F– 95°F (15
Ԩ
-35
Ԩ
)
 Relative humidity: ≤75
%;
 Range of atmospheric pressure: 70kPa~106kPa