Keeping your home clear of dust mites

Key points
- They're called house dust mites and they night quietly live off the flakes of skin you shed, or they can make your life hell.
- Recent technological advances have been recognised as a major step forward in the war against house dust mites.
It's disconcerting that bugs live in your bed. But there are plenty of them. They're called house dust mites and they night quietly live off the flakes of skin you shed, or they can make your life hell.
Recent technological advances have been recognised as a major step forward in the war against house dust mites.
In the past, only products made from vinyl based air impermeable fabrics were available, but they have major disadvantages:
- They're hot and uncomfortable in South Africa's climate;
- Although acting as a barrier to dust mite allergen, the effect of moving the head and body's weight particularly on the pillow, causes a so-called ballooning effect. This in turn creates a spume, or high-pressure jet of allergen-bearing air that then escapes through seams and stitching;
- It's important to maintain a condition which allows for the ventilation of mattress, duvet and pillow. They must remain cool and dry to discourage infestation;
- Individuals with allergic predispositions can also be susceptible to eczema and rhinitis. Their symptoms are made worse by moist warm conditions and other bacteria thrive;
- Air permeability is essential for comfort and safety, especially with the growing number of younger allergic sufferers;
- While the bed cover must allow for air flow it must also prevent the dust mites and their faeces from escaping;
- The use of double flap closures on protectors for mattresses, duvets and pillows is more effective than conventional zip fasteners.
Allergen avoidance
Here are some hints as how to reduce house dust mite allergen levels in the home:
- Fit mattresses, duvets and pillows with air-permeable occlusive protectors which act as a barrier to dust mites and their droppings;
- Fit mattresses, duvets and pillows with air-permeable occlusive protectors which act as a barrier to dust mites and their droppings;
- Wash bedding at 60°C to destroy mites;
- Vacuum bedroom carpets and all other carpets on which children play daily. Vacuum the whole house at least twice a week. Vacuum cleaners without efficient filters will disperse allergens, aggravating the problem. Buy the best vacuum cleaner you can afford;
- Pull the bedcovers back each morning to allow the bed to air thoroughly;
- Turn your mattress and vacuum it each month. Expose it to fresh air and sunlight whenever possible;
- Keep soft toys to a minimum and store them in a cupboard. Place them in the freezer for six hours each week. After freezing, vacuum them to remove dead mites. Wash them once a month in hot water;
Written and revised by
David Cohen, M.D.
Our doctors write and review articles for accuracy and keep them up to date.
health.am provides general information, not medical advice. Always consult a qualified health professional about your own health.
Explore health topics
More in this topic
Lungs, Asthma & Allergies →
NewsNew approach for treating idiopathic pulmonary fibrosis
Idiopathic pulmonary fibrosis (IPF) is a chronic lung disease for which as yet no causal therapy exists. It is, however, known that the lung interstitium - the connective tissue between the air sacs in the lower part of…
9 June 2015
NewsWomen hospitalized 60 percent more than men after emergency asthma treatment
While it may be a stereotype, it's also true that women seek medical care more frequently than men do. And a recent study shows that women with acute asthma who are treated in the emergency department (ED) are 60…
6 May 2015
NewsUTMB study shows cost-effective expert recommended asthma test underutilized by physicians
Researchers from the University of Texas Medical Branch at Galveston have found, for the first time, that spirometry was underutilized for asthma diagnosis and management in U.S. adults from 2001 to 2011, despite it's…
