Airware header box fans from Ventilation Solutions Australia 
Finally is here! Fully approved and tested to fit one hour fire rated ceiling. All this fan needs is a 100mm diameter hole drilled into the fire rated ceiling, and the fan just slots straight in from above, a 230mm deluxe cover is screwed into the gyprock from below providing a nice attractive finish. The Header fan fully complies with the Australian Standards 1668.2. It is the quietest and most powerful of any fan in its class. This makes it ideal for bathrooms, toilets, laundries etc. It features a compact, design, ideal for recessed ceiling mounting where limited ceiling space is a problem.
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