Camfil, air filtration, air filter, PM10, PM1, PM2.5, IAQ, Indoor air quality
Public concern over levels of city traffic emissions has been rising.

Understanding new international standards for air filtration

With less than a year of the transition period for international standards for air filtration to go, Peter Dyment of Camfil explains their implications.

Gilberts, IAQ, indoor air quality, Natural ventilation
Versatile ventilation — Gilberts’ Mistrale Fusion system, shown here in a school classroom, delivers natural ventilation and has a fan to offer enhanced and boost options.

Airing the issues

There is much debate on trends in natural ventilation, but is it all hot air? Roy Jones of Gilberts of Blackpool shares some thoughts.

Airflow Developments, ventilation, MVHR, IAQ, Indoor air quality
Combining good indoor air quality and energy efficiency — Robert Dennis.

Effective ventilation for commercial properties

In a recent report from the Building Engineering Services Association, almost 70% of office workers believed poor air quality was having a negative effect on their wellbeing and productivity. Robert Dennis of Airflow Developments highlights the importance of effective ventilation in commercial buildings to create and maintain a healthy and energy efficient environment.

Xpelair, MVHR, IAQ, Indoor air quality

Xpelair MVHR system offers many add-ons

Xpelair’s Natural Air 180 MVHR (natural ventilation with heat recovery) units come with a vast choice of add-ons designed to make them suitable for virtually all domestic ventilation requirements. One feature is the option of NOx filtration via an external box.

SAV, ventilation, IAQ, Indoor air quality

SAV delivers quiet ventilation for pupils with special educational needs

SAV AirMaster MVHR (mechanical ventilation with heat recovery) units have enable Furze Down School in Winslow, Bucks, to control indoor air quality efficiently while maintaining the low noise levels required for special educational needs. This co-educational community school takes children from the ages of five through to 19, many of the with complex special educational needs (SEN).

Condair, humidity, RH, relative humidity, IAQ, Indoor air quality
Health risks grow as relative humidity falls — Tim Scott.

The science behind a healthy humidity

Tim Scott of Condair asks why 40 to 60%RH is the ‘ideal’ indoor relative-humidity level.

Bio-Oxygen Europe, odours, IAQ, Indoor air quality

Australian air-treatment technology comes to Europe

Bio-Oxygen Europe has been set up to bring the Australian-produced Bio-Oxygen system for eliminating odours, sterilising and purifying air to the European market. The system is said to guarantee odour-free results, along with 99% elimination of viruses and bacteria. It is compact as has low maintenance requirements.

IAQ in buildings is ‘quickest and cheapest anti-pollution measure

Indoor air quality (IAQ) is the quickest and cheapest way to protect people from worsening air pollution, according to one of the country’s foremost clean-air campaigners. Speaking at a special IAQ event to mark the UK’s first ‘National clean air day’ last month, Simon Birkett, founder of Clean Air in London, said that IAQ must become part of the building planning process.

Condair, dehumidifier, IAQ, Indoor air quality

New dehumidifier ranges from Condair

Condair has introduced a range of advanced commercial and industrial dehumidifiers. They cover desiccant and condensing technologies with extensive standard capacities from 0.5 to 182 kg/h (at 20°C/60% RH). Custom units are also available.

Vent-Axia, MVHR, IAQ, Indoor air quality

Vent-Axia MVHR unit wins CIBSE award

The energy-efficiency features of Vent-Axia’s Sentinel Kinetic Advance MVHR (mechanical ventilation with heat recovery) have led it to winning a major award — the energy-efficient product or innovation of the year category of the CIBSE Building Performance Awards for 2017.

New IAQ standards for schools

The BB101 guide for ventilation in schools is being updated. Roy Jones of Gilberts (Blackpool) looks at its implications.

Ruskin Air Management, ventilation, jet nozzle, Indoor air quality, IAQ

Discreet ventilation helps win RIBA award

Discreet but effective ventilation is a key part of the design for the St John Bosco Arts College in Liverpool, which won last year’s RIBA North West Award. The original idea was to use floor-standing displacement ventilation terminals for this massive ‘hangar’-style open-plan facility, but the architect, BDP, felt they would be too intrusive. A second proposal involved multiple jet nozzles to ventilate the space, but BDP was concerned about their unsightly appearance. The team then turned to Ruskin Air Management’s Jason Laugharne, who proposed slot diffusers.

Airflow Developments, MVHR, heat recovery, Indoor air quality, IAQ
Healthy and energy-efficient buildings — Robert Dennis.

Combining indoor air quality and energy efficiency

In response to the challenges of ventilation for commercial buildings, Robert Dennis of Airflow Developments looks at the key issues to consider and the innovative solutions that can save valuable time, energy and costs — whilst creating a healthy interior environment.

Envirovent, duct, ducting, Indoor air quality, IAQ

Semi-rigid ducting is easy and quick to install

Ventilation manufacturer Envirovent has launched a range of semi-rigid ducting which is quick to install and airtight. The Fast Track range is available in circular and flat-oval form and in various sizes. There are three sizes of duct for domestic and small non-domestic systems. All ductwork can be connected to a universal distribution box using adapters.

Gilberts, natural ventilation, Indoor air quallity, IAQ

Maximising natural ventilation for science and IT areas in schools

Gilberts (Blackpool) offers a solution to maximise the benefits of natural ventilation in rooms such as IT suites and science laboratories in schools. Particular issues in such areas include heat from IT equipment and CO2 from Bunsen burners. Gilberts’ solution is its Mistrale Fusion (MFS) natural-ventilation system with the inclusion of enhanced and boost options.

Weatherite Air Conditioning, data centre, Indoor air quality, IAQ

Airflow management for data centres

Airbox from Weatherite Air Conditioning is an air-containment solution that provides an energy-efficient addition to airflow management for data centres. It provides an effective way of helping to control airflow in data centres, server rooms and communications rooms.

Nuaire, demand controlled ventilation, Indoor air quality, IAQ
This LCD controller can fully automate a fan or heat-recovery unit.

Taking effective control of ventilation

Are some approaches to demand-controlled ventilation so complex that they are not effective in reducing overall cost and carbon footprint. Andrew Bott of Nuaire shares his views.

Indoor air quality, Flakt Woods, MVHR, AHU, air handling unit
The counterflow heat exchanger

Towards low-energy IAQ

Achieving good indoor air quality (IAQ) in buildings can be expensive in terms of energy consumption. David Black of Flakt Woods examines how that cost can be minimised.

Indoor air quality, Camfil, air filter, air filtration

Camfil’s energy-efficient range of air filters

Camfil’s Hi-Flo II air filter is an enhanced version of the Hi-Flo low-energy air filters. Aerodynamic pockets optimise performance, and these filters have been rated A+ by Eurovent. They save up to £30 a year for every installed filter.

BEAMA campaigns for effective mechanical ventilation in new homes

To help protect and improve indoor air quality in new homes, BEAMA has launched the ‘Health home mark’ campaign. It calls for support of a ‘Healthy home mark’ in all new homes to enable buyers to identify that its has been fitted with effectively installed continuous mechanical ventilation.

Indoor air quality, Gilberts of Blackpool, natural ventilation

Gilberts’ natural ventilation is a high performer

Gilberts of Blackpool’s Mistrale 75 ventilation units achieve accurate and stable airflow and also have low air leakage and good thermal performance. Air leakage is as low as 5 m3/h.m2, with a U-value of 0.93 W/m2K, similar to a double-glazed window.

Indoor air quality, LG, Air conditioning, aroma
Demonstrating just how unobtrusive the operation of air conditioning can be is its use in bedrooms to maintain a comfortable temperature and pleasant air conditions. This is an LG Artcool unit.

Air conditioning embraces IAQ

Air conditioning delivers a quality indoor environment, and that quality can extend to indoor air quality — as Jody Lees of LG explains.

Indoor air quality, Gibbons Ultraviolet Solutions, odour, AHU, air handling unit

Gibbons applies UV-C light to odour problem

Faced with an odour problem in a recently constructed property on a new £25 million college development, a national contractor called in Gibbons Ultraviolet solutions. The Gibbons team recognised the constant, offensive odour as so-called ‘dirty-sock syndrome’ being harboured by the HVAC system.

Indoor air quality, AEME, Overclean, TR19, TR17
The build-up of bacteria in a duct can be checked by a Difco test.

How the UK led the way in IAQ

Following the development of a centre dedicated to training in ventilation cleaning and hygiene, Peter Reid of AEME and Overclean traces the leading role that the UK has played in developing awareness and standards for indoor air quality throughout the world.

Indoor air quality, IAQ, Airflow, MVHR

Airflow adds to range of residential MVHR units

Airflow has introduced a new range of basic MVHR (mechanical ventilation with heat recovery) units for residential housing. Tunca Sekban, MVHR product manager, says, ‘MVHR in residential dwellings is becoming increasingly common, and units such our new BV range make this type of ventilation a much more realistic option for developers and social housing providers. The low running costs and high efficiency ratings mean payback times are significantly lower than several years ago when MVHR first came to the fore for ventilation.’

Indoor air quality, IAQ, Gilberts, swirl diffuser

Barrel-type swirl diffusers from Gilberts

Gilberts’ Series GB range of barrel-type swirl diffusers provides a wider range of architectural and design style swirl-diffuser options that combine aesthetics with cost-effective alternative design. These diffusers have a fixed-size square fascia designed to fit plaster ceilings and standard 500 or 600 mm-square ceiling grids.

Indoor air quality, IAQ, Elta Fans, centrifugal fan, duct

Elta Fans introduces duct-mounted centrifugal fan

The Viper SCC range of duct-mounted centrifugal fans is part of Elta Fans’ Select range and can produce high pressure even with low air volumes. The fan is well suited for installation in sports and leisure facilities, schools, colleges, retail centres, factories and similar duct-mounted installations. These fans have been designed with the requirements of the ErP Directive, which came into force on 1 January 2013, in mind.

Indoor air quality, IAQ, WindowMaster, natural ventilation, school
WindowMaster has produced guidance on how natural ventilation can meet the heating and cooling criteria of the Priority School Building Programme.

WindowMaster offers guidance on natural ventilation systems for new schools

WindowMaster has produced a ‘white paper’ for contractors on how best to ensure that natural-ventilation systems in new schools meet the criteria for the Priority School Building Programme. It can be downloaded from the link below (case sensitive).

Indoor air quality, IAQ, Xpelair, ventilation, school

CPD covers ventilation in education

Guidance on ventilation in education is provided by Xpelair Ventilation Solutions’ CPD training programme. It is designed to help specifiers and installers better understand the changing ventilation requirements and legislation in the education sector.

Survey highlights poor indoor air quality

Nearly half the British workforce (46%) have suffered headaches, tiredness and felt less productive because of stale air and stuffy working environments — according to research conducted by Populus for Guardian Air Hygiene. Of the 1082 workers surveyed, 38% believe that the quality of air in workplaces is an indicator of employers’ attitudes to employees’ wellbeing.

Indoor air quality, IAQ, Aeereco, demand controlled ventilation, heat recovery
Demand-controlled ventilation with heat recovery — Aereco’s DXR system

Demand-controlled ventilation with heat recovery from Aereco

Aereco’s DXR demand-controlled MVHR (mechanical ventilation with heat recovery) system for homes controls both the supply and exhaust air streams. It is claimed to achieve 92% energy savings compared with a mechanical exhaust ventilation (MEV) system at constant airflow, while providing the same indoor air quality.

Indoor air quality, IAQ, Flakt Woods, heat recovery
Energy-efficient indoor air quality that stimulates productivity — Andy Cardy.

Delivering good indoor air quality cost effectively

Good indoor air quality is essential in commercial applications to maintain productivity and comfort. Andy Cardy of Fläkt Woods, looks at how building-services engineers can optimise working environments while reducing energy costs.

Indoor air quality, IAQ, Breathing Buildings, natural ventilation
The levels of CO2 recorded at Queen Alexandra College in Birmingham using natural ventilation over a week are typically below 1000 ppm, which is well below the daily average requirement for schools of 1500 ppm.

Warming to natural ventilation

One of the challenges of natural ventilation is reducing the expense of tempering cold draughts in winter. Shaun Fitzgerald of Breathing Buildings takes up the subject.

Indoor air quality, IAQ, Mitsubishi Electric, MVHR, heat recovery
Heat recovery can reduce the energy burden of mechanical ventilation by 20%.

Productive buildings that are also energy efficient

If a building’s occupants do not feel healthy and happy then they cannot be productive, so getting the indoor air quality right is an important step to delivering a ‘good’ building. Perry Jackson of Mitsubishi Electric looks at how effective mechanical heat recovery ventilation can help both the wellbeing of occupants and overall building efficiency.

Indoor air quality, IAQ, Matrix, fan coil unit

Ability Projects Matrix fan-coil unit is just 190 mm deep

Ability Projects has developed a 190 mm-deep Matrix self-balancing fan-coil unit to complement the current 270 and 235 mm-deep units. Matrix units have internal-rotor-motor fans and motor sets with every fan directly coupled to its own motor, making every fan/motor assembly an independent entity and enabling its speed to be individually controlled.

Indoor air quality, IAQ, Vortice, fan

Vortice fans are very quietly in operation

Vortice twin fans (pictured) and acoustic box fans are designed to run so quietly that they are suited to applications such as museums and libraries. General manager Kevin Hippey says, ‘These void-mounted products offer a new opportunity for specifiers working in environments where combating noise is particularly important.’

Indoor air quality, IAQ, Elta, HealthVent
A health-based approach to IAQ — Alan Macklin.

Health-driven IAQ

With poor indoor air quality being estimated to cost two million healthy life years annually throughout Europe alone, Alan Macklin of Elta takes a look at the HealthVent project.

Heat-recovery ventilation units from Daikin

Daikin Europe’s VAM and VKM heat-recovery ventilation units include CO2 sensors and optional filters to reduce energy lost and maintain high air quality in commercial premises. They are quick and easy to install and also offer night-time free cooling when part of a complete climate solution.

Indoor air quality, IAQ, Munters, desiccant dehumidifier

Manchester Aquatics Centre cuts the cost of dehumidification

The refurbishment of three Munters desiccant dehumidifiers at Manchester Aquatics Centre has reduced running costs by about 20%, while preserving the building fabric and optimising comfort. The project involved replacing all major components, replacing the old reactivation ductwork with polypropylene and retrofitting the dehumidifers with Munters energy-recovery purge technology to reduce running costs.

Indoor air quality, IAQ, FETA, Nankivell, Healthvent
Indoor air quality and energy efficiency are not separate issues — Mike Nankivell.

Balancing quality with efficiency — the importance of IAQ

HEVAC president Mike Nankivell highlights the importance of filters to indoor air quality and why IAQ should be considered alongside energy efficiency.

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