Unhealthy air purifiers.
The California Air Resources board has banned in-home ozone air
purifiers, citing studies that found they can worsen lung conditions
such as asthma, even though many manufacturers claim they help prevent
such conditions. The regulation requires testing and certification of
all kinds of air purifiers. Any that emit too much ozone will be banned.
"State government needed to set up [its] own standards on air
purifiers because many [marketers] indeed are deceiving the
public," former Assemblywoman Fran Pavley told the Los Angeles