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The Allergy Alert^™ will appear below as soon as the pollen.com server responds.

Negative ions help remove pollen and allergy-causing particles from the air in your room, so you don't have to breathe them in.

They do this by causing allergens such as pollen, mold spores, dust, and pet dander floating in the air (which have either a neutral or a positive charge) to be attracted to and stick to each other, forming 'clumps' (because opposite charges attract).

These clumps of allergy-causing particulates then become heavy enough so that gravity can simply pull them down to the floor, where they can be vacuumed up, rather than staying in suspension where they can be breathed in and cause allergic reactions. (They do not directly "cure" allergies, hay fever, or sinus problems.)

Negative ionization of the air does a superb job of eliminating most tiny pollen particles that float in the air. They are often normally suspended in the air (even when the air in the room seems calm) just by the normal convective air currents.

 You've seen dust (that might include pollen) floating in a beam of sunlight shining in the window, haven't you? Well, when a Comtech Research ionizer is in operation, you see very little (if any) of that.

That is the reason they can help people with allergies: they help remove dust, pollen, mold spores, and other allergens from the air.

Because there is no fan (like in filter-type air filters or room air purifiers), the dust on floors and tables is not stirred up, and so the air in a room with a negative ionizer in use can become exceedingly free of dust, pollen, mold spores, and other allergens. And, the air does not have to pass through a filter or fan to be cleaned; the air throughout the room is purified.

(Of course, if you have a window open on a windy day and the pollen is blowing in, no negative ionizer will clear the air quickly enough to help anyone.)