A foreword by Dave Archer, Business Manager – M&E Contractor Sales Team

Indoor Air Quality & The Built Environment - An Insight for M&E Contractors

With greater focus on health in our workplaces and homes, indoor air quality (IAQ) has become a key issue for homeowners and building managers alike. M&E Contractors are central to delivering good IAQ, and their ability to design and deliver efficient and effective ventilation systems is critical.

In 2022, the UK government introduced Part O of the Building Regulation, requiring closer management of overheating in homes.  Ventilation systems help to ensure that indoor environments (where we spend most of our time) are not only pollution-free but also at comfortable temperatures.

While IAQ is important, it must also be balanced with the need for energy-efficient building operation, so careful consideration must be taken at the design and installation phases, in both domestic and commercial projects.

Mitsubishi Electric has developed a range of technologies for homes and non-dwellings to help meet this challenge. Our award-winning Lossnay mechanical ventilation with heat recovery (MVHR) systems have been applied in a wide range of projects.

A recent example is the Galliard Homes development known as TCRW SOHO on London’s Tottenham Court Road. Here, our Lossnay MVHR units ensure each apartment has continuous fresh air throughout the year, even at the height of summer.

We have also worked with the Building Engineering Services Association (BESA) to produce award-winning guides to IAQ and mould reduction for homeowners, landlords and contractors. These publications are part of Mitsubishi Electric’s mission to provide a resource for M&E contractors so that they can stay up-to-date with the latest industry thinking, as well as standards and regulations.

Our aim is to encourage contractors to access these resources, and to open a conversation about how we can work together to deliver IAQ in buildings to the benefit of occupants and owners alike.

I’d like to take the opportunity to thank those who contributed to the information in this pack, including Mitsubishi Electric’s technical ventilation experts and the BESA IAQ Action Group.

An Insight into indoor air quality

In collaboration with BESA and the Global Action Plan, this guide has been created to highlight the dangers of air pollution.

It is aimed at clients within the built environment, and particularly facilities managers, however it is crucial for everyone involved in building projects to understand the important role they can play in creating healthy environments for occupants. 


View and download guide
beginners guide to iaq

An insight into healthy buildings

Ventilation is often the most overlooked building safety issue, so this guide is designed to equip M&E contractors with relevant information about the Building Safety Bill and how it will affect our industry.

The guide also supports facilities managers and building owners with assessing the ventilation problems in their building, along with the solutions that can help to resolve them.


View and download guide
buildings as safe havens

An insight into the future of offices

Over the past few years, the way we work has changed, and this has affected the way office buildings need to operate. Alongside operational changes, what people expect from office spaces has also shifted as businesses look for more high-quality workspaces, to encourage staff back to the office.

This guide looks at how office buildings are changing and what technology is available to make them high-quality, comfortable, and healthy buildings for both today and the future.


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the future of offices

IAQ Solutions

LGH 160 RVX3 E Commercial Lossnay Ventilation

LGH-RVX3-E Mechanical Ventilation Heat Recovery System

The new Lossnay LGH-RVX3-E Mechanical Ventilation Heat Recovery (MVHR) systems are designed to supply clean, fresh air into any commercial building, whilst simultaneously extracting stale air, ensuring good indoor air quality for occupant wellbeing.

s AIRME G07 HR P C Air Handling Unit Transparent

s-AIRME-G07 HR-P C Air Handling Unit

The Mitsubishi Electric AIRME Compact Air Handling Units (AHU's) utilise a frameless structure to achieve a line-up of units that are as compact as possible, maximising air tightness and improving thermal properties.

Resi Lossnay VL CZPVU RL E

VL-CZPVU-R/L-E - Mechanical Ventilation Heat Recovery Unit

The residential Lossnay range of Mechanical Ventilation with Heat Recovery (MVHR) units create an environment of constant clean and healthy air at home.

- Ultra quiet
- Cloud control
- Easy filtration of pollutants
- Full summer bypass function