Ruck ISOT 250E with a 250mm Inlet/ Outlet and an Airflow of 1085m3/hr. Ruck 250mm Acoustic Insulated Inline Fans Ruck Fans are high quality, extremely quiet German made fans. The fan range is insulated to minimise noise pollution. The high quality metal casing features a removable top plate for easy accessibility to fan section and mounting fixtures on the base to enable the unit to be fixed to a wall or ceiling. Sound insulated boxed fan 100 % Speed controllable Easy removable fan section Forward curved motorized impeller. This is a fully insulated fan, for a slighlty noisier fan, but cheaper, select the Economy version.

Sound Pressure Levels. dB(A) @ 3M(The higher the dB(A) the noisier)
Casing break out sound level: 33 dB(A)
Sound level on inlet: 38dB(A)
Size: 466mm x 482mm x 287mm

Air flow versus Back Pressure

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