Improving indoor air quality since 1936
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Ventilation Compliant

Positive Input Ventilation (PIV)

Suffering from Condensation & Mould? Our PIV range is the solution

What causes the problems?

Did you know that 58% of people have suffered mould and condensation in their home? If you consider the fact that 90% of the time is spent indoors, it is vitally important to focus on improving indoor air quality (IAQ). It can damage not just the property, but health as well.

Cooking, cleaning and bathing 
These activities generate up to 10 litres of moisture per day. In addition, every load of washing that is hung to dry inside adds 2.5 litres. All together there could be 12.5 litres of moisture generated in the home every single day which can cause condensation and mould.

Volatile organic compounds

Substances like formaldehyde get into the home from things like paint, new furniture and cleaning products. The average person breathes 9,000 litres of indoor air each day, so poor indoor air quality (IAQ) can cause serious risk to health such as heart and respiratory diseases, and asthma being a key concern.

Increased insulation

In the drive to insulate our homes we have created an airtight box where, not just heat, but moisture and chemicals can’t escape. This causes poor indoor air quality, which can contain a cocktail of over 900 chemicals, particles and biological materials, which can have a negative effect on health.


What is Positive Input Ventilation (PIV)?

Positive Input Ventilation (PIV) is an energy-efficient method of ventilating the home. It pushes out and replaces stale unhealthy air with drier fresh air by gently introducing filtered air into the home and increasing the circulation around the property and improving the indoor air quality (IAQ). 

Ventilation removes the root cause of condensation and mould within the home. If a property has high levels of moisture, if left untreated this will allow mould to form causing further issues. By removing the moisture and other pollutants from the air, condensation cannot settle, and mould cannot grow which removes the problem at the source.

The Solution

Positive input ventilation (PIV) is one of the best solutions to tackle poor indoor air quality (IAQ). It is a solution for all types of properties, PIV units are usually situated in a loft or on a wall. Our PIV range offers both solutions whether you live in a house or a flat.

Suitable for properties
with lofts

PoziDry ProTM

Suitable for properties
without lofts

PoziDry Compact Pro