Table 2.1 – Extract ventilation rates

Room: Kitchen, Utility room, Bathroom, Sanitary accommodation. Intermittent extract – Minimum rate: Kitchen 30 l/s adjacent to hob or 60 l/s elsewhere; Utility room 30 l/s; Bathroom 15 l/s; Sanitary accommodation 6 l/s. Continuous extract – Minimum high rate: Kitchen 13 l/s; Utility room 8 l/s; Bathroom 8 l/s; Sanitary accommodation 6 l/s. Minimum low rate (all rooms): Total extract rate should be at least the whole dwelling ventilation rate given in Table 2.2. Note: (1) Adjacent to a hob means either – (a) incorporated within a cooker hood located over the hob; or (b) located near the ceiling within 300 mm of the centre line of the space for the hob.