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The 2012 Annual Meeting of the American College of Allergy, Asthma & Immunology (ACAAI) concluded today having run from November 8th-13th in Anaheim, California. The meeting offered an exciting array of educational sessions for physicians and allied health professionals, as well as some fantastic social events.

airmid healthgroup Air Filtration & Biomedical research representatives will be attending the International Filtration Conference in Philadelphia, USA during the 14th – 15th November.


Last month airmid attended the 2012 Annual General Meeting of the European Feather and Down Association in Dublin. The purpose of the association is to promote the interests of the European members of the bedfeather and feather-filling industry and their suppliers. In addition, it pursues the targets of making a contribution towards promoting fair business dealings and transactions, of informing its members of European quality regulations, and of encouraging the compliance with such regulations.

For this blog entry, we discuss the occurrence of "Popcorn workers lung" attributed to diacetyl inhalation, following the recent legal proceedings of a Bronchiolitis obliterans (BO) sufferer who contracted the respiratory disease following exposure to diacetyl from Popcorn. BO is an obstructive respiratory disease, whereby the bronchioles are obstructed by tissue damage and aberrant epithelial repair. The result is a narrowing of the bronchioles, restricting normal respiratory function. This should be of concern to managers and safety officals of manufacturing plants producing diacetyl and whose employees or consumer base may be at risk from exposure.

Maire FoxAs a world leader in Environmental Research, Development & Testing, airmid healthgroup recognises the importance of being an ISO 17025 accredited laboratory. The benefits include: 

  • Data accepted by regulatory bodies anywhere in the world
  • Increased customer confidence
  • Minimised risk of unreliable results
  • Reduced cost on unreliable results and re-testing

Recent studies conducted on vacuum cleaner emissions, have vacuum cleaners as a potential source of indoor exposure to airborne allergens, bacteria and other pathogens. In this blog post we review the issues around this occurrence and the steps manufacturers of vacuum cleaners can take to ensure their products meet certification standards, in particular the asthma & allergy friendly certification standard.  As an accredited immunoassay testing facility airmid healthgroup is a designated laboratory for the program.

The testing of vacuum cleaners and similar domestic electrical appliances such as air cleaners involves the use of "test-dust"; Dr Angela Southeyinert particles consisting of silicon dioxide, aluminium, iron and sodium oxides. It is used to mimic typical household dust, which is composed of a mixture of fibres and particles of varying sizes and compositions. Sources of which include skin, mites, soil, heating emissions and pollen grains. In this blog post, we talk to Dr. Angela Southey, a lead researcher at airmid healthgroup, about a recent study she conducted and presented at the prestigious 13th International Conference on Indoor Air Quality and Climate in Austin, Texas comparing the characteristics of ISO fine test dust to real house dust.

This blog post follows an interview format with Angela Southey PhD at the test facility at airmid healthgroup and offers a very valuable insight on the subject.

Tagged in: fine test dust

ASHRAE 52.2 is a method of testing general ventilation air cleaning devices to determine their removal efficiency as a function of particle size. It iDr Angela Southeys a method that determines the ability of an air filter to remove particles on the basis of specific particle sizes ranging between 0.3 to 10 microns. A central feature of ASHRAE 52.2 is the incorporation of the Minimum Efficient Reporting Value (MERV) for each filter tested. Angela Southey is the head of the environmental test chamber at airmid healthgroup. In this interview, we ask Angela about Airmid’s new ASHRAE 52.2 test duct, its functional association with the Environmental Test Chamber and the importance this facility has for HVAC testing, MERV testing and its potential for contract research.

This article has been written in Q and A format following an interview with Angela Southey PhD

Tagged in: ASHRAE 52.2 MERV

For this blog entry we are covering the topic of Legionnaires' disease following the outbreak in Edinburgh last month and more recently the outbreak in Stoke-on-Trent in England. Scotland's Health Secretary Nicola Sturgeon reported that the number of confirmed and suspected cases of Legionnaires' disease in Edinburgh had risen to 40. Air Quality professionals suspected the source of the Edinburgh outbreak was environmental contamination and early indications suggest it was the result of a contaminated cloud emitted from a cooling tower in the south west of the city. The source of the outbreak in Stoke-on-Trent has not yet been identifed.

Dr Bruce Mitchell

Over recent years, airmid healthgroup has become a market leader in the assessment of airborne bio-particulate load in indoor spaces. Unique services are provided to clients in both state-of-the-art large scale chambers or in “field” situations, i.e. environmental studies in homes, offices, and other places where people congregate.