Topic
3 guides.
Ionizers charge particles so they stick to surfaces or clump. They can also make ozone and other byproducts, and the evidence for some newer ion technologies is thin. Here is what is known.
Winix's 5500-2 was the default mid-size purifier for years. Its replacement, the 5510, keeps the thick carbon filter and adds Wi-Fi. Here is what the certified numbers say.
The AM90 is Winix's taller Wi-Fi tower. Its certified airflow matches the 5510, but its carbon filter needs replacing four times as often, and Amazon has had it out of stock.
