Research Articles

Mite-proof bedcovers may reduce asthma flare-ups in children

  • Conclusion: ‘Although the study was not large enough to conclusively define the subgroups that benefitted the most from the intervention, the authors wrote that their results suggested that younger children testing positive for only house dust mite allergy and living in non-smoking households were more likely to benefit from the mite impermeable bed covers.’
  • Source: University of Manchester
  • Authors: Dr Clare Murray, Michael Addelman
  • Read the full article here

Preventive effect of bedding encasement with microfine fibers (AllerGuard) on mite sensitization

  • Conclusion: “The bedding encasement with the mite-blocking fibers* was effective for preventing atopic infants from being sensitized to HDM’s (House Dust Mites), and it seems to be beneficial to modern busy house keepers“.  (*AllerGuard)
  • Source: Journal of Allergy and Clinical Immunology, Vol 101, Issue 1, Pages: 28-32
  • Authors: Kenji Nishioka MDa, Hiroshi Yasueda PhDb, Hirohisa Saito MD, PhDb,c
  • Read the full article here

Effect of mattress and pillow encasings on children with asthma and house dust mite allergy

  • Conclusion: “Encasing of mattresses and pillows resulted in a significant long-term reduction in HDM allergen concentrations in mattresses and in the need for inhaled steroids in children with asthma and HDM allergy“.
  • Source: Journal of Allergy and Clinical Immunology, Vol 111, Issue 1, Pages: 169-176
  • Authors: Susanne Halken, MDa, Arne Høst, MD, DMScb, Ulla Niklassen, MDc, Lars G. Hansen, MDd, Frank Nielsen, MDa, Søren Pedersen, MD, DMScc, Ole Østerballe, MD, DMScd, Chris             Veggerby, MSce, Lars K. Poulsen, DMSce
  • Read the full article here

Laboratory assessment of the efficiency of encasing materials against house dust mites and their allergens

  • Conclusion: …”Woven covers* are recommended because of their major advantages of not allowing the colonization of mites within the fabric, being easy to clean, and comfortable“. (*i.e. AllerGuard)
  • Source: European Journal of Allergy and Clinical Immunology, Vol 58, Issue 10, Pages: 981-985
  • Authors: Dr Inoue, Dr Hayashi, Dr Doi, Dr Takamatsu and Dr Toyoshima
  • Read the full article here

Special cover (AllerGuard) as a protection against house dust mite exposure

  • Conclusion: Microguard (AllerGuard) is a useful tool to avoid mite allergen exposure by reducing not only the concentration of mite allergens but also the amount of dust.
  • Source: Japanese  journal of Allergology, Vol 43, 2-1, Pages: 120-126)

    Authors: Maeda Yuji , Yasueda Hiroshi , Akiyama Kazuo, Shida Takao and Miyamoto Terumasa

    Read the full article here

Other tests:

The German consumer organisation TEST ( investigated a variety of high quality dust mite protection covers. 12 products were tested with AllerGuard as the best overall product.

Patient Study:  ‘Microguard’ (=AllerGuard)/Bronchial Allergic Asthma in Children

  • Conclusion: ..”With this data we can say that ‘AllerGuard’ is effective to Bronchial  Asthma and allergies in children.”
  • Source: Osaka Habikino Hospital, Children Dermatology
  • Summary of Findings: Controlled test of the effect of using AllerGuard Mattress protectors in children with asthma and allergic reactions to the house dust mite:


The severity of asthma attacks in children was graded:

Grade 3: Severe attack

Grade 2: Moderate asthma attack

Grade 1: Small asthma attack

Grade 0: No asthma attack






The amount of coughing in children was graded:

Grade 15: Very frequent coughing

Grade 10: Frequent coughing

Grade 5: Infrequent coughing

Grade 0: No coughing





AllerGuard is certified by the Danish Medicines Agency, and has been developed in co-operation with the Danish Asthma & Allergy Association. AllerGuard also holds the Oekotex Certificate and is tested for harmful substances.