![Man and woman planning their renovation at a table with plans in an unfinished room](https://expella.com.au/wp-content/uploads/2021/12/expella-getting-started-on-ventilation-feature-1170x670.jpg)
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Getting started on home ventilation
![Expella's Shadowline Diffuser at Lower Fort Street Residence by Hither Consulting](https://expella.com.au/wp-content/uploads/2021/12/expella-shadowline-lower-fort-800x533.jpg)
Expella's Shadowline Diffuser sits discreetly at the wall/ceiling junction and is connected to an inline ventilation system at this heritage renovation in Lower Fort Street. Designer: Hither Consulting. Builder: Construct Central Coast. Photo: Simon Whitbread.
![Expela inline ventilation system diagram](https://expella.com.au/wp-content/uploads/2021/12/expella-inline-ventilation-diagram-1-800x533.jpg)
Inline ventilation systems have the fan positioned in the roof space and use ducting and grilles. Inline systems can ventilate single or multiple rooms.
![Expella ceiling fan diagram](https://expella.com.au/wp-content/uploads/2021/12/expella-ceiling-fan-diagram-image-800x533.jpg)
Expella's Ceiling Fan shown here at Natura Macquarie Park.
![Expella wall fan diagram](https://expella.com.au/wp-content/uploads/2021/12/expella-wall-fan-diagram-800x533.jpg)
A wall fan exhausts air through a single wall as shown here.
![Expella roof fan diagram](https://expella.com.au/wp-content/uploads/2021/12/expella-roof-fan-diagram-1-800x533.jpg)
A roof fan system can service multiple rooms, it utilises duct and grilles allowing more options design and placement