Model EHV with centrally mounted heavy duty industrial 3 phase motor Where to use Ideally for industrial openings of 90 -107 inches height Primary purpose Prevents dust, conditioned air losses, odor and fumes from entering through doors or pathways. For effective insect barrier air curtain please connect with our customer care executives or drop an email. Sizes Ideally for industrial openings of 90 -107 inches height Colour Technical Details Average Velocity at source 13?16 m/sec delivering 1 -1.5 m/sec at floor level. Cfm of air draft 1730 min to 4450 max. Noise level @ distance of 10 feet from unit in controlled environment 62 dB in to 71 dB max. 3-phase motor. IE2 TE type S1 duty.