Inline Duct Exhaust Fan – DP-B033-AU

The Arklyfe Inline Duct Exhaust Fan DP-B033-AU is the high-airflow inline duct fan in the Arklyfe range, built around a Ø150 duct diameter for the AU bathrooms and laundries where the smaller A-series airflow would leave moisture sitting in the room too long. It is the right pick for double-shower ensuites, main family bathrooms with combined tub-and-shower, larger laundries with multiple appliances, and any space where moisture extraction speed actually matters to the building's long-term condition. Shipped from Melbourne for Australian 240V mains.

The Ø150 duct diameter is the meaningful upgrade over the A-series. A Ø150 duct moves roughly 2.25× the air of a Ø100 duct at the same fan blade speed, which means moisture clears faster, ceiling paint stops peeling, tile grout stops growing mould, and the post-shower fog goes away in minutes rather than half-hours. For AU bathrooms with persistent fogging or moisture-damage problems, the answer is almost always larger ducting upstream (not a noisier fan downstream), and the DP-B033 is the inline answer.

Inline ducted installation keeps the fan body out of the visible bathroom and hidden in the ceiling cavity, presenting only a small subtle vent at ceiling level. The metal housing handles the years of ducted-air exposure in the roof void without the routine maintenance access a panel fan would get. For medium-to-large AU bathrooms where extraction needs to actually solve the moisture problem rather than just gesture at it, this is the model. For the largest spaces, step up to the DP-B045 at the same Ø150 duct.

✓ Inline ducted Ø150, high-airflow, metal housing, low-noise. Shipped from Melbourne. 12-month warranty. Free shipping on orders over $199. | Compare the full Exhaust Fan range →