Extractor fan

An extractor fan is a mechanical ventilation device designed to remove stale air, smoke, moisture, fumes, or odors from a room or space, replacing it with fresh air from outside

Specifications

• <p class="ql-align-center"> <strong>Specification / Attribute</strong></p><p class="ql-align-center"> <strong>Common Range / Typical Values</strong></p><p> Airflow / Extraction Capacity</p><p> • For small rooms (bathroom, small kitchen): ~ 50–200 m³/h (or ~ 30–120 CFM)&nbsp;&nbsp;• For medium‑size kitchens: ~ 200–500 m³/h&nbsp;&nbsp;• For larger areas, commercial or heavier ventilation needs: higher — depending on fan and ducting.</p><p> Power Consumption (Motor Wattage)</p><p> ~ 8–50 W for typical household/extraction fans.&nbsp;&nbsp;Larger / more powerful / industrial‑type extractor fans may require substantially more power depending on motor and airflow needs.</p><p> Noise Level</p><p> ~ 20–50 dB for quieter residential fans; if used in a kitchen or heavier‑duty installation, noise can go higher (some larger fans may be noticeably louder) &nbsp;</p><p> Fan (Impeller) Size / Mounting Diameter</p><p> Small domestic / window or wall‑mounted units: typical housing/diameter ~ 100–150 mm (for small bathrooms/kitchens)&nbsp;&nbsp;Larger fans for bigger rooms / commercial or industrial use: depending on design — may use larger blades or duct‑mounted assemblies.</p><p> Air Pressure / Static Pressure Capacity</p><p> For ducted installations or longer duct runs, fans should offer enough pressure to overcome duct resistance; small fans handle only short straight ducts. &nbsp;</p><p> Motor Type &amp; Build</p><p> Typically single‑phase AC motor (for residential/wall/fan‑unit types), sometimes with capacitor start; industrial fans may use heavier‑duty motors and robust metal impellers. &nbsp;</p><p> Construction / Materials</p><p> Plastic (e.g. ABS or similar) housings for small residential units: light, corrosion‑resistant, easy to clean.&nbsp;&nbsp;For heavier‑duty fans: metal bodies, metal blades/guards for durability. &nbsp;</p><p> Installation Types</p><p> Wall-mounted, ceiling-mounted, window-mounted, or ducted (inline) depending on room layout and ventilation requirements.&nbsp;&nbsp;Could be ducted to outside or recirculating depending on fan design and purpose. &nbsp;</p><p> Optional Features (depending on model)</p><p> • Back‑draft shutter / damper (prevents outside air or pests entering when fan is off)&nbsp;&nbsp;• Timer or over‑run (fan runs some minutes after switch-off) — common in bathrooms or humid areas.&nbsp;&nbsp;• Humidity sensor or automatic activation (especially useful in bathrooms, laundries, or wet environments)&nbsp;&nbsp;• Duct compatibility: standard residential ducts often 4–6 inch diameter; bigger fans may require larger ducts for efficient airflow. &nbsp;</p><p> </p>