Positive Input Ventilation (PIV) Units – Fresh Air, Better Indoor Environment
Installing a positive input ventilation (PIV) unit is a smart way to improve indoor air quality while helping reduce issues like dampness and condensation—especially in UK homes prone to poor air circulation. These systems gently introduce filtered, fresh air into upper areas of a house, creating a subtle, continuous flow that pushes moist, stale air out through natural leak paths.
Designed for quiet, year-round operation, PIV units work efficiently without disrupting daily life. They’re an excellent solution for improving ventilation in bedrooms, living spaces, and loft areas, particularly in well-insulated buildings where natural airflow may be limited. The controlled fresh air flow helps balance indoor humidity, discourages mould growth, and supports a healthier breathing environment.
Maintenance is straightforward: most models include washable filters and accessible vents. Over time, consistent air turnover can reduce reliance on intense heating, promoting energy savings and improving occupant comfort. While upfront installation requires some planning, the resulting benefits—drier walls, fresher air, and reduced cleaning needs—make PIV systems a valuable long-term investment.
Explore our selection to find a PIV unit suited to your home’s size and layout, making year-round comfort and air quality easier to achieve.
Blauberg AERIS-MIDI-GRY Aeris-Midi Decentralised Single Room Heat Recovery Unit - Grey Cowl
Blauberg AERIS-MIDI-GRY Aeris-Midi Decentralised Single Room Heat Recovery Unit - Grey Cowl Product Description Blauberg Aeris-Midi smart room mou...
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Blauberg AERIS-MIDI-CS Aeris-Midi Decentralised Single Room Heat Recovery Unit - Cotswold Stone Cowl
Blauberg AERIS-MIDI-CS Aeris-Midi Decentralised Single Room Heat Recovery Unit - Cotswold Stone Cowl Product Description Blauberg Aeris-Midi smart...
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Blauberg AERIS-MINI-TER Aeris-Mini Decentralised Single Room Heat Recovery Unit - Terracotta Cowl
Blauberg AERIS-MINI-TER Aeris-Mini Decentralised Single Room Heat Recovery Unit - Terracotta Cowl Product Description Blauberg Aeris Eco-Ventilato...
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Blauberg AERIS-MINI-GRY Aeris-Mini Decentralised Single Room Heat Recovery Unit - Grey Cowl
Blauberg AERIS-MINI-GRY Aeris-Mini Decentralised Single Room Heat Recovery Unit - Grey Cowl Product Description Blauberg Aeris Eco-Ventilators are...
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Blauberg AERIS-MINI-CS Aeris-Mini Decentralised Single Room Heat Recovery Unit - Cotswold Stone Cowl
Blauberg AERIS-MINI-CS Aeris-Mini Decentralised Single Room Heat Recovery Unit - Cotswold Stone Cowl Product Description Blauberg Aeris Eco-Ventil...
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Blauberg AERIS-MINI-BRO Aeris-Mini Decentralised Single Room Heat Recovery Unit - Brown Cowl
Blauberg AERIS-MINI-BRO Aeris-Mini Decentralised Single Room Heat Recovery Unit - Brown Cowl Product Description Blauberg Aeris Eco-Ventilators ar...
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Blauberg VENTO-MIDI-AIR-GRY Vento Midi-Air Decentralised Single Room Heat Recovery Unit - WiFi - Grey Cowl
Blauberg VENTO-MIDI-AIR-GRY Vento Midi-Air Decentralised Single Room Heat Recovery Unit - WiFi - Grey Cowl Product Description Vento ventilators a...
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Blauberg VENTO-MIDI-AIR-CS Vento Midi-Air Decentralised Single Room Heat Recovery Unit - WiFi - Cotswold Stone Cowl
Blauberg VENTO-MIDI-AIR-CS Vento Midi-Air Decentralised Single Room Heat Recovery Unit - WiFi - Cotswold Stone Cowl Product Description Vento vent...
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Blauberg ENVIRA-45 Single Room Heat Recovery Fan for Mould Control - Small
Blauberg ENVIRA-45 Single Room Heat Recovery Fan - Mould Control Solution Product Overview ENVIRA-45 - Your Affordable Solution to Mould Issues The...
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Blauberg ENVIRA-50 Single Room Heat Recovery Fan for Mould Control - Medium
Blauberg ENVIRA-50 Single Room Heat Recovery Fan for Mould Prevention - Medium Product Overview Introducing the ENVIRA-50: Advanced Heat Recovery F...
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Blauberg ENVIRA-60 Single Room Heat Recovery Fan for Mould Control - Large
Blauberg ENVIRA-60 Single Room Heat Recovery Fan – Effective Mould Control Solution Product Overview ENVIRA-60 – Intelligent Ventilation for Mould ...
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Vent-Axia 443319 Lo-Carbon Sentinel Kinetic BH Right MVHR Unit
Vent-Axia 443319 Lo-Carbon Sentinel Kinetic BH Right MVHR Unit Recognised in SAP PCDB Lightweight for easier installation Horizontal duct op...
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Vent-Axia 443319L Lo-Carbon Sentinel Kinetic BH Left MVHR Unit
Vent-Axia 443319L Lo-Carbon Sentinel Kinetic BH Left MVHR Unit Recognised in SAP PCDB Lightweight for easier installation Horizontal duct optio...
View full detailsEnvirovent ESAVA200 EnergiSava 200 Wall & Floor Mounted MVHR Unit with Summer Bypass, Remote Control & Humidity Tracking
Envirovent ESAVA200 EnergiSava 200 Wall & Floor Mounted MVHR Unit with Summer Bypass, Remote Control & Humidity Tracking The Envirove...
View full detailsEnvirovent ESAVA200C EnergiSava 200 Ceiling Mounted MVHR Unit with Summer Bypass, Remote Control & Humidity Tracking
Envirovent ESAVA200C EnergiSava 200 Ceiling Mounted MVHR Unit with Summer Bypass, Remote Control & Humidity Tracking The Envirovent Energ...
View full detailsEnvirovent ESAVA260 EnergiSava 260 Wall & Floor Mounted MVHR Unit with Summer Bypass, Remote Control & Humidity Tracking
Envirovent ESAVA260 EnergiSava 260 Wall & Floor Mounted MVHR Unit with Summer Bypass, Remote Control & Humidity Tracking The Envirove...
View full detailsEnvirovent ESAVA260C EnergiSava 260 Ceiling Mounted MVHR Unit with Summer Bypass, Remote Control & Humidity Tracking
Envirovent ESAVA260C EnergiSava 260 Ceiling Mounted MVHR Unit with Summer Bypass, Remote Control & Humidity Tracking The Envirovent Energ...
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Vent Axia 476311 Lo-Carbon PoziDry Pro Positive Input Ventilation (PIV) Unit with Heater
Vent-Axia 476311 Lo-Carbon PoziDry Pro Positive Input Ventilation (PIV) with Heater The Vent-Axia 476311 Lo-Carbon PoziDry Pro™ with Heater is an ...
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Vent Axia 479188 Lo-Carbon PoziDry Compact Pro Positive Input Ventilation (PIV) Unit
Vent-Axia 479188 Lo-Carbon PoziDry Compact Pro Positive Input Ventilation (PIV) The Vent-Axia 479188 Lo-Carbon PoziDry™ Compact Pro is a compact P...
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