Right now there are 39 deals from Amazon Resale, formerly Amazon Warehouse Deals, in Home & Kitchen › Heating, Cooling & Air Quality › Air Purifiers › Air Ionizers. These are inspected returns and open-box items that Amazon sells and ships itself. WarehouseHunter puts each one next to its current new price, so you can see what you save at a glance.

Brands with the most offers here: Ozone, VEVOR, CAT, AIRTHEREAL, ION, Sharp. Every item is a one-off, so the stock moves all day and new deals keep arriving.