Home Site Map Contact


Allergy Eliminators

Dust Mite Allergy

What Customers Say

 Dust Mite Allergy Research


Machine Design

Renewable Energy Design

Engineering Products

Engineering Research

   56 132 769 174

Address :
   Wesley Place,
   Cherrybrook NSW 2126
   P.O. Box 6872
   Norwest Business Park,
   Baulkham hills,
   NSW 2153, Australia.

Tel :
Fax :

Email :



Asthma and Allergies Caused by Dust Mites

Ranjith Obeyesekera M.Sc K-HART International Pty.Ltd, Baulkham Hills, NSW 2153, Australia

Did you know that 300 million people worldwide are affected with Asthma-related problems due to allergens and bad circulation of air inside houses? Asthma is triggered by dust mites’ feces, dead mites, mould, and contaminated moisture stagnated inside houses.

Over 50 million people in central & Southern Asia suffer from asthma since 1980.In Europe the number is reaching 100 million. In Africa the Asthma related problems affected are over 50 million. Among the developed countries, Australia has 2 million people suffering from Asthma, 23.2 million people are affected in United States, 9 million out of which are children, and in United Kingdom 1.5 million people are affected with Asthma related problems. Dust mites allergens are one of the worst allergens cause Asthma, Eczema, watering eyes, Hay fever, runny nose, sneezing, and itchiness.

One of the major allergens which cause asthma and other allergic reactions is originated by dust mites. This allergen is dust mite feces. House dust mite allergy is very common and is associated with asthma, eczema and allergic rhinitis, especially in climates such as Australia where the allergen is present in large amounts [1, 3]. A major site of exposure to house dust mite allergen is the bed however it is important to remember that dust mite allergen is found in all rooms of the house. House dust mites can trigger respiratory or dermatological conditions including asthma and eczema. Symptoms can include:

  • Breathlessness
  • Wheezing
  • Coughing
  • Itchy skin
  • Runny nose
  • Itchy nose
  • Skin rashes
  • Itchy eyes
  • Hay fever
  • A tight feeling in the chest [2]

Dust mites are microscopic creatures hardly seen by naked eye. The length of a dust mite is not exceeding 420 m and width from 250 m to 320 m. They are globular shape and having a translucent body with long hair on their striated cuticles. They have 8 hairy legs.

Dust Mites
Figure 1.
Various microscopic insects live with us causing allergies.

Dust mite do not bite or sting but harbor strong allergens in their bodies as well as in their secretions, excreta and shed skins. Constant contact with these allergens can trigger respiratory and dermatological complaints in some humans. Dust mites have a rudimentary alimentary system (no stomach) and require most digestion to occur outside their body. For this reason they secrete enzymes and deposit the fungus aspergillus repens on dust particles, to enable the fungus to pre-digest the organic matter with its enzymes. Dust mites eat the same particle several times, only partially digesting it each time.

We have found that several thousands of dust mites live in pillows, mattresses, bed covers, surrounding & underneath of beds, and carpets. Some times the number exceeds to several millions. In addition to the dust mites above mentioned, there are few other microscopic mites also live with them. They all carry translucent bodies. Figure 1 shows various mites that were found in bed sheets, mattresses, pillows, and carpets. Unfortunately they are not visible in naked eye to remove them. The dust mites move actively through thin fibers of dust particles. With a vacuum cleaner it is hard to remove all the dust mites as they are held to thin dust fibers and move against vacuum flow. In addition to thin fibers, there are dead mite bodies, dust mites’ feces, dead human skin flakes, human hair, and other foreign matters are existed in dust. It was revealed that dust mites can not fly or move freely in the air without the help of lump of dust. Some times they can be found under the bed with dust.

It is now possible to eliminate house dust mite population, and dramatically reduce them by living in your bed day by day. Actually the dreams come true. K-HART International Pty.Ltd has researched and designed a series of products which are capable to totally eliminate dust mites in mattresses, pillows, carpets, and other beddings in doors. In addition, the company has developed a dust mite eliminator product for house pets. Allergic reactions are dose-related, so the fewer dust mites you have in your home, the less you may be troubled by respiratory or dermatological symptoms.

 Web References:

  1. The children’s Hospital at Westmead-Parents-House dust mites
  2. House dust mites-Better health channel
  3. Dust mites, Department of Medical Entomology, Westmead hospital, University of Sydney, 2009.
  4. K-HART International Pty.Ltd. Technical papers, Australia, 2008.

(Keywords: Indoor Air Circulation, Healthy Homes, Health, Stuffiness, Mould)



Home | About us | Management | Services | Contacts | FAQ | Online Store | Site Map | Press Releases |
Job Opportunities | Set as Home Page | Privacy Statement
Copyright 2012 www.khartInternational.com , All Right Reserved.