How to Choose a Mattress Cover / Encasement to Block Dust Mites and Allergens
A new study published in the Journal of Textile Research, 2009, closely woven with a thread number over 246 and a pore size between 2 and 10 microns, is blocked more than 99% of dust mite allergens and prevents 100% penetration of dust mites.
The study covers anti-mites: potential criteria for materials used against mites, Posted by: Vanna Mahakittikun, Prapakorn Ninsanit and Teerapong Wangapai – Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, John Joseph Boitano Thailand and Expansion – Stratford, Connecticut, United States and Chulaluk Komoltri – Clinical Epidemiology Unit, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand, tested 53 anti mite covers claiming to be “anti-mite “10 different countries.
Samples understands woven (son in more than 265 inches), film / membrane coated woven, acaricide coated woven, nonwoven, coated non-woven membrane, acaricides (Ceramite, chitosan) coated non-woven fabric and plastic / no -woven combo. Three regular cotton bed sheets (180 son) were also tested and used as a comparison.
Keep in mind that these products have been tested were all claiming to be “anti-mite covers” specifically on the market to prevent dust mites and their allergens associated with the consumption of penetrate bedding.
They concluded that while the tissue membrane and plastic film / good results, due to restrictions of air permeability of fabrics, tightly woven with a factor of air permeability between 2 and 6cm3/s/cm2 are the fabrics to meet the performance requirements and comfort.As well, tightly woven fabrics treated with acaricides no more successful than those without acaricides. Fully 41% of tissues tested failed to meet the basic requirements, these loosely woven fabrics included treated with acaricides and non-wovens.
The study also emphasizes that it is not unreasonable to assume that repeated washing of all the different covers, other than plastic, significantly degrade performance over time, according to a study he cites. However, other studies cited, suggest the structural integrity of tight cover was not compromised.
They concluded that the plastic covers and tight block the penetration of dust mites and prevent leakage of allergens while other types of covers fail. The minimum criteria proposed is a fabric with “a pore size of between 2-10? Air permeability m must be greater than 2 and less than 6cm3/s/cm2, and a higher number of threads 246/in2 “
What does this mean for the average consumer? Basically they say that all coverage tight son more than 246 per inch is sufficient to block dust mites and their allergens. Coatings and chemicals have no advantage over a tightly woven, and all plastic and dust mite allergens blocks, it is not breathable, so it will be uncomfortable.
Finally, the consumer has a baseline to inform their decision on what type of protection they choose and how much to pay for it. No longer will you have to pay for fancy coatings, chemicals, and false allegations. What you need is a well-built, high quality fabric with a thread count over 250. Whether you choose 100% cotton or poly / cotton or polyester just becomes a choice based on comfort and whether or not you have a sensitivity to synthetic materials. Selecting a fitting mattress, blanket or sheet travel, no longer rests on the smallest pore size, as any material less than 10 microns can block 99% of allergens of dust mites and all mites . What you must remember is that on top of your mattress cover or collection, you can also use a sheet. The combination of both, since both are at least 250 per inch son, your coverage will be excellent.
Well, why you ask, do I need an embedding if my records are more than 250 per inch son? For the same reason you should not just use a “blanket”. A coating of the envelope of the bed prevent mites from escaping already and prevent new mites from infesting. If you just use a blanket, something that you put on top of your mattress like a leaf, then you will not get the protection you may have or need.
The same criteria for the covers can be used for other protective barriers such as leaf travel. The big difference between a mattress and a coating sheet travel is, you do not sleep directly on a mattress, you do not sleep directly on a sheet travel. So while you can choose an embedding of mattress or blanket that is coarse, it will be covered by your sheets. Your choice for a piece of travel would be much sweeter. A product like a Allersac, 400 per inch son, provides more than adequate protection, but is soft and comfortable to sleep in.
Whatever product you need, do your homework. Find a socket and a price sheet or a trip to meet your needs. If a company can not tell you the number of threads or pore size, if the product can be easily washed, or if you want pure cotton and have synthetic switch. Contact another company, there are many manufacturers of these types of protection.
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