

The air we breathe becomes of more concern to us as time goes by. Air purifiers can help us keep our homes and work spaces free of all types of air-born pollutants. There are various types of air purifiers available in the market today, ranging in size, quality and price.
Basic Air Filtering Purifier: The most basic air purifiers employ the use of a cloth type filter to remove the dust particles. HEPA or High-Efficiency Particulate Arresting filters are the finest filters and can trap 99.97% of the particles in that air. Typically, a fan pulls air through a foam pre-filter designed to remove some larger particles. The air is then forced through the pleated HEPA filter, which is designed to trap most particles. The air might then pass through a carbon filter to remove odors. Sometimes the carbon filter will take the place of the pre-filter.
Pros: Removes dust, pollen, mildew and pet dander from the air, relieving many allergy symptons.
Cons: Although a HEPA purifier can trap most suspended particles, it is ineffective against chemical fumes, odors and gases, so a carbon filter is a must if you are concerned about these pollutants. Also, if the filter is not replaced every so often (according to the manufacturer’s instructions), the unit in ineffective.
Ozone air purifiers, also called ozone generators, release ozone (O3) molecules into the air, which reactively combines with chemical fumes, odors and bacteria. Room air passes through a high-voltage plate, where some oxygen molecules are ionized. These ions combine with oxygen to form ozone. The size of the generating plate and the amount of electrical current affects the amount of ozone produced.
Pros: Removes the odors, gases and chemical fumes left behind by the basic air purifying unit.
Cons: Cannot eliminate particles and other allergens. In general, ozone generators emit high levels of ozone, so they are not meant for routine air cleaning. They should be used only by professionals in unoccupied areas after serious contamination has occurred in the home, say from a fire or a flood. Continue reading this post…










