Whole House Ventilation Solutions

EnviroVent’s Positive Input Ventilation (PIV) and Multiple Input Ventilation (MIV) systems create fresh and healthy living environments by supplying fresh, filtered air into a property at a continuous rate.

Our popular PIV and MIV units reduce/eliminate surface condensation, prevent mould growth and reduce house dust mite populations. The units also offer a wide range of energy saving and health benefits.

What’s more, our PIV and MIV units are ideal for retrofit projects. They are manufactured in the UK and come complete with 5 year renewable warranties.


PIV Loft Mounted Unit

PIV Loft Mounted Unit

Positive input ventilation for homes with a loft space.

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PIV Air Source

PIV Air Source

Positive input ventilation for homes with a loft space.

This unit also provides summer cooling.

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MIV Loft Mounted Unit

MIV Loft Mounted Unit

Multiple Input Ventilation for homes with a loft space.

This unit allows you to position a fresh air input directly into the bedroom of an asthma sufferer.

More information on MIV Loft Mounted Unit

MIV Air Source

MIV Air Source

Multiple Input Ventilation for homes with a loft space.

This unit allows you to position a fresh air input directly into the bedroom of an asthma sufferer.

More information on MIV Air Source

Wall Mounted Unit

Wall Mounted Unit

Positive input ventilations for flats and apartments.

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Dynamic PIV

Dynamic PIV

Whole house ventilation system for newbuild and refurbishment projects to be used in-conjunction with Dynamic Insulation.

More information on Dynamic PIV

Our range of positive input ventilation products...

Loft Mounted Unit
Loft Mounted Unit

Positive Input Ventilation for properties with a loft.

Wall Mounted Unit
Wall Mounted Unit

Positive Input Ventilation for flats, apartments and properties without a loft.

MIV® Air Source
MIV® Air Source

Positive Input Ventilation for properties with available loft space and accute problems in multiple rooms. Has the facility to draw cooler air from outside in the summer.

Latest Videos

Watch our video about Healthy Homes

Watch our video about PIV for Newbuild

Watch our video about the Dynamic PIV