With so many types of air purifiers in the market, the choices are quite daunting. Of course if you have severe allergies and money is no object, your best bet is an air purifier that uses a HyperHEPA filter, like the IQAir HealthPro air purifier (about $700.) A slightly cheaper air purifier but shown to be effective against allergens is the Friedrich C-90A air purifier (about $500.) Fear not if you are on a tighter budget, you still can get pretty reasonable and yet still effective air purifiers for less than $300 but more than $200. Types includes those ionizing and low ozone air purifiers. However if you are really really low on budget, you can probably get one of the portable air purifiers that uses an old-fashioned air filter (about $70). These are usually smaller and clean a smaller size room; so multiple machines will be needed for a home.

Why are there so many different price points for those air purifiers? Chances are the more you pay for an air purifier, the more effective the air purifier is. For example, the most complex and hence most expensive air purifier systems are based on ultra-violet light (UV) technology. Viruses are too small to be filtered by HEPA or traditional air purifiers and only UV light can effectively zap them. Thus most hospitals and government buildings often use UV/HEPA combo systems.

Now if you cannot even afford $70 for a air filter, the next best alternative is to go natural. Yes, back to mother nature for help. Living plants can also serve as air purifiers. These natural purifiers remove carbon monoxide, benzene and formaldehyde. Gasoline, oils, paints, and rubber all contain benzene - you certainly don't want to breathe that in every day! English Ivy, Gerbera Daisy, and Mums are great plants that you can use to help purifier your air. Most are available at home improvement stores and nurseries for just about $10. The more of these plants in a room, the better they are able to filter the air.

The most important thing is that you have to find out more what each of these air purifiers can do, research online and also check out their price range. Only then when you have done your homework, you can make an informed decision on what is best for your home and your pocket!

Lesley Chew writes useful articles on several topics including air purifiers. Read about more detail and features of each type of air purifiers at Air Purifier Guide 101.