Greenwood Centrifugal Surface Mount Bathroom Fan with Timer - SF90T 400100031 it looks at the duration

it looks at the duration of occupancy to define running time rather than have a fixed running period

medium and high speeds via a remote wired 3 position switch (GS1) or low and high only via a double pole switch (GS2)

and inserting cables for electrical supply

Genuine MEVAC & MEVDC G2 Filter Replacement - Quantity: 1 Filter supplied

MINI AQUA CONDENSATE REMOVAL PUMP

Greenwood Centrifugal Surface Mount Bathroom Fan with Timer - SF90T 400100031 it looks at the durationThe SF90T Surface mounted fan can be wall or ceiling mounted, It is a single speed, 100mm surface mounted centrifugal fan suitable for duct runs up to 10m long and comes with integral back draught shutter. This is the 'T' Timer model a single speed fan operated via a light switch or pull cord. The overrun timer can be set to run for up to 30 minutes. The SF90T is IP rated 44, can be located in Zones 1, 2 or in the 'Outer Zone' and surface, wall or