Wall to wall carpet and upholstered surfaces can be reduced or replaced with hard surfaces that are easier to clean. Dust mites can not survive long on hard surfaces due to dehydration. They absorb water through contact with their environment. Dusting with a ULPA or HEPA filtered vacuum cleaner or specially treated cloths is recommended over damp mopping. The latter may increase the humidity in the house. Dust mites can't live at humidities below 50%. Using air conditioners and dehumidifiers during the summer to keep the humidity between 40% and 50% is often recommended. During winter, if using a humidifier, be careful to keep the humidity in this same range. A good humidity gauge can help monitor this. Carpets that get damp on a regular basis should be replaced with hard surfaces.

Having carpets professional cleaned with superheated steam will effectively killing dust mites in them. Carpets can be treated with sprays containing 3% tannic acid to make dust mite droppings non- allergic. Benzyl benzoate powder which actually kills dust mites is also available. Reduction of contact with dust mite droppings is often preferred since these contain toxic chemicals which some people are sensitive to.

Reducing Exposure to Allergens with Air Filters

Wearing a well fitting dust mask while vacuuming and making beds can reduce the dust mite allergens you inhale. Some allergists even recommend airing out a room really well after vacuuming to reduce the airborne particles which are stirred up by many vacuum cleaners. Furnace mounted and portable air cleaners are available but their cost may be greater than the benefits achieved by them. They definitely are not a substitute for the preventative measures described above. The best are media type filters like those which meet the stringent HEPA specification. Electrostatic filters are not recommended unless cleaned regularly in which case they may be as effective. Special filters can be placed on the furnace air vents leading to your rooms to help trap allergens before they can enter the room. Air cleaners which generate ozone should be avoided since they have little effect on allergens in the air and may worsen allergy symptoms since the ozone may irritate the respiratory system.

Importance of an ULPA or HEPA Filtered Vacuum Cleaner

The vacuum cleaner is one of the most important tools for managing dust mites and their minute droppings. Thorough cleaning of carpets, mattresses, upholstered furniture, curtains and drapery regularly will reduce the dust mite allergens in your home. It is better to clean thoroughly once a week instead of lightly every day. In order to prevent these minute particles containing allergens from being recirculated into the air you breathe, a vacuum cleaner's filtration system must be very efficient at trapping particles at least that small.

The agitation and air flow created by your vacuum cleaner to clean you surfaces causes a huge number of minute dust mite dropping to be drawn into it. They can easily pass through most vacuum cleaner bags and filters and be exhausted back into the air you breathe, making it much dirtier than before. The vacuum cleaner industry is taking advantage of the development of advanced filtration media to provide much higher quality exhausted air than was possible just a few years ago. The current cutting edge in vacuum cleaner technology is in the area of improving the filtration efficiencies of vacuum cleaners. Special high filtration paper bags are available from many manufacturers which filter much better than conventional ones. To learn more about these high filtration paper bags, see our article on the efficiency of vacuum cleaner paper bags

To reduce the effects on allergies and asthma caused by the allergens in dust mite droppings, look for a vacuum cleaner with an ULPA or HEPA filter. It also is very important to have a completely sealed system so all air flow must pass through the ULPA or HEPA filter to be cleaned by it. By combining high filtration paper bags, a Certified HEPA filter and completely sealed systems, vacuum cleaners can achieve extremely high filtration efficiencies of 99.97% at 0.3 micron size particles. ULPA filters have an even higher efficiency of 99.999% at 0.12 micron size particles. For more information about HEPA and ULPA filtration.

Summary

Dust mites are microscopic creatures which live at peace with all of us, constantly going about their routine of cleaning up our environment. Unfortunately, for about 10% of the population, the protein DER p1 in their minute droppings causes allergic reactions which affect their respiratory systems causing allergic reactions and triggering asthmatic attacks. A visit to an doctor specializing in allergies (allergist) can confirm which allergens you are sensitive to. They are able to prescribe a course of action which may include steps to reduce the allergen exposure, medication therapy and possibly desensitization injections.

Key steps to reduce exposure to dust mite allergens include encasing mattresses and pillows, washing bedding and curtains regularly, controlling humidity in you home and cleaning thoroughly with a powerful high filtration vacuum cleaner. In extreme cases, carpets and upholstered surfaces should be replaced with hard surfaces which are easier to clean and which inhibit dust mite growth. The goal is to reduce allergen exposure to below the level at which allergic reactions occur, not necessarily the elimination of all exposure to the dust mite allergen.

The Marble Master Stone Care System is specially formulated and developed by stone care professionals with more than 40 years of experience in the natural stone industry. For more information or to purchase the products, visit www.marblemasteruk.com or call 020 8807 8889.

Edward Green owns and operates the highly successful Marble Master Ltd company. Marble Master specializes in Restoration and Refinishing of all types of natural stone and consultancy services to Architects, Restoration Companies and Interior Designers. www.marblemasteruk.com