‘High efficiency’ vacuum cleaners no better at protecting against dust mites
Researchers at the North West Lung Centre, run by The University of Manchester and based at Wythenshawe Hospital, have discovered that vacuum cleaners with ‘high-efficiency particulate air’ or HEPA filters are no more effective than standard models at reducing exposure to dust-mites.
The team compared nasal air samples taken before and during vacuum cleaning using both HEPA and non-HEPA vacuum cleaners. They found a small increase in exposure to dust-mite during vacuuming with either type of machine, which was increased when emptying the dust compartments of either.
Lead investigator Dr Robin Gore said: “These vacuum cleaners are marketed to allergy-sufferers on the basis that they reduce a person’s exposure to air-borne particles raised from carpeted floors. For allergy sufferers, such particles can trigger asthma attacks. However, we have already found that both HEPA- and non-HEPA vacuum cleaners can actually increase an individual’s exposure to particles containing cat allergens.
“These latest findings further suggest that there is no significant advantage to using a HEPA vacuum cleaner to reduce exposure to air-borne particles like dust-mites.
“In combination with our previous work, the study seems to confirm that high-efficiency vacuum cleaners confer no benefits and should not currently be specifically recommended to allergy sufferers as a means of reducing personal exposure to allergens, either by their manufacturers or health professionals.”
The study was published in the January 2006 issue of the European Journal of Allergy and Clinical Immunology. The co-investigators in the study were Professors Ashley Woodcock and Adnan Custovic.
The most recent press releases about innovation >>>
Die letzten 5 Focus-News des innovations-reports im Überblick:
The more electronics steer, accelerate and brake cars, the more important it is to protect them against cyber-attacks. That is why 15 partners from industry and academia will work together over the next three years on new approaches to IT security in self-driving cars. The joint project goes by the name Security For Connected, Autonomous Cars (SecForCARs) and has funding of €7.2 million from the German Federal Ministry of Education and Research. Infineon is leading the project.
Vehicles already offer diverse communication interfaces and more and more automated functions, such as distance and lane-keeping assist systems. At the same...
A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.
The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...
At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.
At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...
There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?
At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...