| Perhaps the best air purifiers are those from the | | | | If you want a quiet machine without sacrificing |
| IQAir line. These units are widely used in hospitals | | | | too much efficacy, buy a Blueair or Electrolux |
| to eliminate mold, viruses, and bacteria. In fact, | | | | model for $350 to $600. The Blueair 601 controls |
| the Hong Kong Hospital Authority chose the IQAir | | | | pollen, dust mites, mold, pet dander, and general |
| Health Pro as the only acceptable air purifier during | | | | indoor pollution in a range of up to 679 square |
| the SARS outbreak. The IQAir Health Pro uses a | | | | feet. The Electrolux 510A is a very quiet and |
| carbon pre-filter, a gas media absorber, and a | | | | economical unit that includes a filter change |
| HEPA filter. Its efficient design prevents | | | | indicator light. |
| already-cleaned air from immediately reentering | | | | If you are only looking to spend under $200, you |
| the intake duct. It filters air up to 50% faster | | | | have plenty of options. Hamilton Beach, for |
| than most other purifiers, and at almost a 100% | | | | example, often includes ultraviolet light in their |
| filtering rate. Being the best, it is also the most | | | | machines to filter out viruses and bacteria, and |
| expensive, often costing up to $1,600. | | | | the HB Ultra Digital Air Purifier includes a sensor |
| Another hospital-grade air purifier brand is Clarifier. | | | | that monitors and shows the air quality on the |
| Their three models can all be had for under a | | | | control panel. |
| grand. They include high carbon content for | | | | You can also buy good air filters for cars and |
| superior odor reduction, strong HEPA efficiency, | | | | very small spaces. Roomaid uses a true HEPA |
| and an ultraviolet light for killing off mold trapped | | | | filter and only costs $130, while Hamilton Beach |
| in the HEPA filter. | | | | offers one with a 3M filter for just $70. |