Education & Advice
300mm Exhaust Fan
A 300mm Exhaust Fan is commonly a ceiling mounted fan that requires a 300mm round cutout in the ceiling (or thereabouts). This is a popular size for a ceiling mounted exhaust fan and is a common retrofit size. At Pure Ventilation we stock a number of modern, suitable options for a hole size of 300mm.
300mm Diameter Cutout Size
These fans will perfectly fit a 300mm round diameter hole in your ceiling:

482 m3/hr

482 m3/hr

482 m3/hr

482 m3/hr
290mm Diameter Cutout Size
400 m3/hr
400 m3/hr
Whilst officially the recommended cutout size is 290mm this product will fit in an accurately cut 300mm hole.
296mm Diameter Cutout Size
550 m3/hr
550 m3/hr
378 m3/hr
378 m3/hr
378 m3/hr
378 m3/hr
378 m3/hr
Whilst officially the recommended cutout size is 290mm this product will fit in an accurately cut 300mm hole.
Options with Integrated Light
300mm Diameter Cutout Size

482 m3/hr

482 m3/hr
290mm Diameter Cutout Size
400 m3/hr
Whilst officially the recommended cutout size is 290mm this product will fit in an accurately cut 300mm hole.
296mm Diameter Cutout Size
378 m3/hr
378 m3/hr
378 m3/hr
378 m3/hr
378 m3/hr
Whilst officially the recommended cutout size is 290mm this product will fit in an accurately cut 300mm hole.
Important Note: It is often not possible to replace a fan based on the fascia size alone! It is always a good idea to remove the old fan and measure the hole size in the plasterboard before looking for alternatives if you want to make the replacement as easy as possible.