Positive Input Ventilation or PIV Systems works by encouraging the movement of stale air from inside to outside from a unit that is usually installed in a loft. These units reduce or eliminate surface condensation altogether by replacing humid stagnant air with fresh filtered air.

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Benefits include

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- Fresh filtered air

- Eliminates mould

- Centrally situated diffuser (landing)

- Ideal for retrofit

- Cost effective solution to poor air quality

- Distributes solar gain from the loft to living space