Passive Vapour Vent MK2

The Passive Vapour Vent MK2 contains a permeable membrane within the main plastic circular tube. This encourages moisture migration due the differences between external and internal temperature and air pressure.

The membrane acts as a molecular sieve, allowing water vapour to pass to the outside whilst resisting rapid air movement and therefore heat loss. The vent is also fitted with a specially designed cowl which counteracts the detrimental effects of external wind on performance.

Features:

• No moving parts.

• Works passively 24 hours a day (a passive dehumidifier).

• Quiet operation (generates no noise).

• Low installation cost.

• Available in standard, extendable or high rise version.

Benefits:

• Reduces draughty air flow and heat loss.

• Suitable for most wall thicknesses.

• Works at peak condensation times.

• No night time disturbances from compressors or fans.