The basic purpose of this type of cover is to keep dust, dust mites and other small
micro-organisms out. There are two ways this can be done. The most common and simplest way is to
have a urethane membrane running around the cover. These covers are the ones that are usually
cheaper. If you are looking for low cost allergy duvet covers then these
are the ones that you should be considering.
One place that you can consider is allergyguarddirect.com. They have these types of covers and
their prices are relatively much cheaper than those that you will find listed in most places. The
advantage of using covers that have urethane membrane is that they also make the cover water proof.
This protects the cover from spills and leakages.
The other types of allergy duvet covers are made from tightly woven fabric without the urethane
membrane. As can be expected these are more expensive than the other type I mentioned before. You
can check out places like www.achooallergy.com for this type of cover. They are made from a blend
of different fabrics to make them. These fabrics effectively keep dust and mites and out.
Prices can range from $30.00 for the ones that have the urethane membrane up to $200.00 for the
ones made of pure fabric alone. Other places where you can get allergy duvet
covers are allergystore.co and target.com. You can make online purchases from all these places
so check them out.