It depends on the size of your home and the type of purifier you choose. A basic central air purifier unit can cost anywhere from $200 to $1,000, while a more advanced model could cost up to $5,000. Installation costs will also vary depending on your location and the type of system you choose, but it's generally safe to budget an additional $100-$300 for professional installation.

The cost to install a central air purifier system will vary depending on the size of your home, the type of system you choose, and the company you hire. Generally, though, you can expect to pay anywhere from $1,000 to $5,000 for installation.