Choosing an Air Purifier
Your issues in buying an air purifier to support better management of allergies are:
1. Do you need portable air purifier or central filtration system?
Between tabletop and room-model portable units, most people agree that the room models are more effective at cleaning a single room. If you want a larger living space or an entire house cleaned, consider a built-in central filtration system. The smaller portable units cost between $50 and $150, while larger or more efficient portables may cost up to $800. Central air cleaners can cost $1000 to $3000, depending on the size and efficiency of the device.