You can avoid the noise of regular air purifiers as well as the cost of replacement filters by switching to a filterless air purifier. Filterless air purifiers work by charging the incoming air, moving it across a collection point with an opposite charge that attracts and removes dust and other particles in that air. Most filterless air purifiers do have a pre-filter but the pre-filter requires little maintenance. Filterless or Ionic Air purifiers are available at online retailers such as Air-Purifiers-America.com at prices ranging from around $100 up to about $1,000.
Under $200
The highest rated filterless air purifier at a budget price is the Honeywell HHT-080 Air Purifier, which costs $130. An illuminating light on the device will alert you when the washable pre-filter needs to be cleaned. During testing this model was reported to remove 50 percent of impurities in the air.
$200-$499
The best option in this category is the Alen A350 Air Purifier, which costs $499 with a lifetime warranty. This device is wall-mountable and can reduce impurities by 98 percent in a room of 400 square feet. This model also requires a pre-filter but claims to have among the lowest replacement costs in the industry.
$500 and Up
The highest ranked of the high end filterless purifiers is the IQAir HealthPro, which costs about $800. This model removes 99 percent of air particles, is remote-controlled and is endorsed by the American Lung Association. The IQAir HealthPro is especially effective controlling mold spores, pollen and pet dander, making it the best choice for allergy sufferers.


