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How PIV Works

Positive Input Ventilation (PIV) is a whole-home ventilation solution that tackles condensation, black mould, and poor air quality at the source. Unlike traditional extractor fans that only work in individual rooms, PIV systems create gentle air movement throughout your entire property by continuously drawing in fresh, filtered air and naturally expelling stale, moisture-heavy air.

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How Positive Input Ventilation Works

Here’s a simple breakdown of the positive input ventilation process:

Fresh Air Intake

The PIV unit draws in air from a clean source, usually your loft space.

Filtering & Tempering

The air is filtered to remove dust and pollutants.

Gentle Airflow

Fresh air is distributed through the ventilation system and into your home at low pressure.

Expelling Damp Air

Moisture-heavy, stale air is naturally pushed out. Which helps prevent condensation and mould.

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Why Choose a PIV System from ClearAIR PIV

A PIV system installed by a fully insured NAPIT accredited engineer helps to eliminate black mould and condensation. They are also a fantastic way to improve air quality and reduce asthma triggers and allergens. They help to eliminate musty odours and have low running costs due to their energy efficient design. 

Each PIV unit installed by ClearAIR PIV comes with:

  • PIV Installed by Local Experts - We’ve installed hundreds of PIV systems across Chesterfield, Derbyshire, South Yorkshire, Nottinghamshire, and the Peak District.
  • Free property assessment - One of our PIV specialists will visit your home and assess whether you would benefit from a PIV system.
  • NAPIT-accredited engineers - All our installers are fully NAPIT accredited and insured guaranteeing you peace of mind.
  • Full EIC certificate - All the installs we undertake come complete with a full EIC certificate for your security and peace of mind.
  • Manufacturer’s warranty - Each of the units we install comes with a manufacturer’s warranty
  • Fully insured installation - Each installation we undertake is fully insured to guarantee you quality craftsmanship.
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Getting a PIV System Is
As Easy as 1, 2, 3

At Clear Air PIV, we make the whole process simple, stress-free, and cost-effective.

Complete our 10 second online PIV suitability checker

Take our 10 second PIV suitability checker and see if you qualify for a FREE home ventilation assessment.

Free Home Ventilation Assessment

Arrange for one of our Specialist PIV Assessors to visit your home and carry out a full ventilation assessment. We’ll check for signs of condensation, dampness & mould, and poor airflow. 

We will then advise if a PIV unit is suitable for you. If yes, we will recommend the right PIV unit to suit your property and layout. No pressure. No hard sell. Just honest advice from experienced professionals.

Professional Installation

Once you're happy to go ahead, our NAPIT-accredited installation team will fit your new PIV system. All done at a time that works around you and your family commitments. Every install is neat, efficient, and carried out to the highest safety standards. You’ll receive a full EIC certificate, and all our work is fully insured for your peace of mind.

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Areas We Cover

We install PIV units in homes, businesses and rental properties across:

  • Chesterfield
  • Sheffield & South Yorkshire
  • Nottingham & Nottinghamshire
  • Derby & Derbyshire
  • Peak District towns & villages

Why not speak to a member of our team or take our 20 second online checker to see if you qualify for a free assessment.

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Frequently Asked Questions

Got a question about our PIV products? Please find some of our most asked questions here, if you still need to know more just get in touch.

Still Have Questions about Positive Input Ventilation?

Speak to a member of our local PIV team. We are happy to discuss anything from the range of PIV systems we install. To how they can be used in conjunction with an extractor fan. We believe clear air is important, and are more than happy to discuss how to achieve it.

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