There are and other signs of allergies such as bronchoconstriction or even sometimes and outright attacts of asthma, dyspnoea and other. It is also important to mention that allergies may also cause and bronchoconstriction, edema, coma, hypotension, cutaenouse or in the worst cases death. One of the most usual allergies that caused with the airborne pollen is allergies on the pollen with the symptoms of hay fever. Allergy may be defined as condition in which immune system react to the foreign substances which are not harmful and as results of it immune system makes antibodies that lead to the symptoms which are related as allergies, such as difficult breathing, itchiness, swelling, etc. One of the useful option as prevention to the allergies is to use product related as allergies, created to help people for avoiding symptoms of allergy. Connected with the previous allergen, there are also and allergen which are present all over your house and it is dust and dust mites. These little microorganisms are living in mattresses, bedding, pillows and furniture in your house. Ways for Controlling Allergy Symptoms It is the fact that you can not live in the vacuum, so that's why it is very difficult to avoid allergens that influence on reaction of your body. With the words of an allergist Stanley P. Galant, in Orange Country in California, allergy shots work very good and extremely at patients, especially for those who clearly have allergic symptoms. But, it should be added that allergy relief shots don't have same effect on all patients. Actually, patients with allergies such as house mites, molds and animal dander do not react on this product. Still, if you need product that really gives results you need to check is that product contains tannic acids. Tannic acids are important ingredient of each product intended for controlling dust mites. It is because these are breaking down animal dander, dust mite allergens found in the furniture or carpets and cockroach allergens. With adequate instruments for measuring, this online store, gives you product that is best protection from allergy, but also and from causes of asthma. Product such as allergy relief air purifier is very good solution for your home, because, it not only that protects you from causes of asthma and allergy, but also because this product is designed to fit to every home environment.