The Filterless Air Purifier And Desk Air Purifier | Info & Products

Air purifiers are devices meant to capture and remove airborne particles like human and pet hair, as well as chemicals and odors. These devices are used in many homes to sterilize indoor air, combat outside air pollution, and to relieve asthma and other allergic reactions.

A desktop air purifier is a smaller version of these devices and is meant for personal use. These are often used by individuals with sensitivities to various chemicals or particulates and find that they are often in places, such as in a workplace with many cubicles, where the existing air purifier system is inadequate.

For people who like these desktop versions, here are some things to keep in mind:

• Make sure that it works silently and will not disturb you or your co-workers.

• Buy a model which does not emit ozone which can build up around your area and can be harmful to you, especially if you have respiratory ailments like asthma.

• Check the filter life of the model you are planning on buying, because the costs of frequently replacing filters can add up.

Air purifiers often use filters to absorb and remove airborne particulates, and chemicals in indoor air. A filterless air purifier uses other methods to remove harmful matter from the air.

Here are some of air purification technologies used by filterless air purifiers:

1. Electrostatic - Technically called electrostatic precipitators, these devices electrically charge airborne particles, collect them using an oppositely charged plate, and deposit hat they collected on the purifier's metal collection grids or plates. Electrostatic filtering is ineffective in removing chemicals or odors. This is why some electrostatic purifiers have carbon pad filters as compensation.

2. Ionization - Such devices give off negatively charged ions to make airborne particles gather into clumps, which fall to the floor or attach to walls, curtains, or furniture. Because the harmful particles are not really removed permanently, they will be airborne again. Like electrostatic purifiers, these devices do not remove chemicals or odors but gather only the particles with high ozone emissions. Air purifiers that are labeled as ionic use this kind of technology.

3. Photocatalytic - Devices which use photocatalytic oxidation (PCO), use ultraviolet light to excite its metal semiconductors to produce oxidants to destroy air particulates, odors and chemicals. Since PCO is only able to remove small particulates, the devices usually have an added filter to handle the bigger dirt.

4. Plasmacluster Ions - These devices use positive and negative polarities to create a charge in the airflow. They can thus create an oxidation reaction on the on airborne water molecules to destroy particles and inactivating microorganisms. In general, however, devices which use this technology also use filtration or ozone.

Planning to buy a filterless air purifier? Here are some things to keep in mind before questions before going off to the store.

• The purification technology you should use;
• The amount of square footage you want the purifier to cover;
• Your budget for an air purifier;
• Features of well-known brands in the market; and
• Stores, online and offline, where the best deals are.

Spending some time to make some research can save you time and effort, not to mention money, when buying a filterless air purifier.