The filter of this product filters 0.3 of microns and a minimum of the 99.97 percents of air. This filtering is from various contaminants and allergens, which includes dust mite feces, dust mites, pollen, animal's dander and mold spores. With Achoo Allergy you may find allergy relief air purifiers intended for rooms sizes 1100, 500, 250 square feet and less. Also, if you think that you are allergic on some food, it doesn't mean that you are, until you do blood analyzes and determine on which food you are allergic. Also, it should to mention that avoiding of the food doesn't mean totally avoidance of the foods. It is recommendation to make food diary for making list of the food on which you are allergic. It is because not every person react same with using allergy shots. For patients who have problem with heart, or take beta blocker or have sever asthma, it is not recommendation to use this medicine. After that you have consulted with your doctor about using allergy shots, you will be tested for determining of what allergens your body reacts. Immune system is actually, your bio-weapon which protects your body from all diseases that are attacking your body. This mechanism may identify foreign invaders and in same time also destroy them. Still, sometimes it could happen that this mechanism, immune system, makes some mistakes which cause allergies. Allergy may occur at your body for things which may be not problematic for most people. These things are known as allergens and as reaction to them your body sends symptoms and signals that your immune system is in dangerous. Most Common Allergy Symptoms There are more symptoms that are noted in the moment when your body overreact on the allergens. One of the medical treatment is also known as epinephrine or also known as adrenaline. This medication is only for most difficult cases. Every food may cause allergy, but the most foods that are cause of allergy are: treenuts, milk, eggs, peanut, fish, soy, wheat and hazelnut. One of the most common food allergy comes from peanut.