Yes Succulents are good air purifiers and great to have in your home.
When you have succulents in your home you should notice better breathing and fresher air in your home.
The air quality has improved in my home since I started placing a few succulent plants around my home.
Another good plant for purifying the air naturally in your home is the snake plant and the snake plant is also good for helping you sleep.
I have a snake plant in my bedroom and few succulents in my living room and dining room and the snake plant helps me sleep and the succulents as well as the snake plant help keep the air purified.