Dust mite introduction:
House dust mites are arthropods, belonging to the Arachnids class, Acarnia subclass, Acariformes order, Astigmata suborder, and pyroglyphidae family. Distributed around the world, they are eight-legged creatures similar to the spider family. The dust mites that we commonly see at home are dominated by European house dust mites and American house dust mites.
Dust mite growth environment:
Dust mites prefer to live in moist (relative humidity of 60 to 80%), warm (20 to 30°C), and gloomy environment. The optimal conditions of relative humidity 75% and temperature roughly 25°C that human feel comfortable in also happen to be the best survival conditions for dust mites. Basically,
dust mites can be seen in 80% of families’homes.
Tiny invisible dust mites:
Most dust mites that live in the home environment measure about 100 to 300 microns in size.
They primarily feed on dander shed by humans, and pure cotton home bedding is their ideal
breeding ground. Dust mite excrement that can easily cause human allergic reactions measure
about 10 to 30 microns in size.
Super strong reproductivity of dust mites:
The average life expectancy of dust mites is about two months, and a female dust mite lays about 200-300 eggs in her life span. Eighty percent of home bedding have been found to have 2 millions to 10 millions dust mites. According to studies, a pillow that has been used for one year contains 10% the weight of dust mites and their excrement.
Where are dust mites hiding?
Dust mites can be found in many places at home, but predominantly in bedding with appropriate temperature, humidity, and ample food supplies. This is most evident while lying in bed, as the mouth and nose come in contact with the bed sheet, so bedding at home should be the first priority in dust mite prevention.
Home dust mite prevention measures:
Humidity: Maintain a relative humidity of 60% or less in the living environment.Wash household bedding more often: First run the bedding in the dryer on high for a few minutes or iron the bedding, then wash them at temperatures above 55 ℃.Anti-dust mite bedding: In terms of dust mite prevention efficacy rating - biological >> chemical >>physical approaches.
Dust mite food sources:
The primary foods of dust mites are dander and molds shed by humans. It is estimated that the dead skin flecks that a person sheds per day during bathing are able to feed 3,000 dust mites for three months. In the event of food scarcity, dust mites will also feed on their own excrements as recycled food.
Allergies caused by dust mites:
The entire body of dust mites are allergens. Dust mite bodies will cause allergic reactions so their deadbodies, excrement and eggs are also strong allergens. Due to the number and light weight nature of dust mite excrement to dust mite bodies, they can thus be easily inhaled into the human bodies to cause allergies.
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