2 filters per pack. Fits Boston HEPA air purifier models 25790 / 25792.

RUBBERMAID 2 Manual-Height Micro Filter Upright Vacuum (Case of 2)

A04-1725-034 Humidifier Filter

The Blueair 402SF Air Purifier HEPASilent Smoke Filter, 2 Pack fits models 402

This amazing machine combines heater and ESP air purifier in one unit. And you can also use it as an air purifier individually. It features with low and high setting to allow you to deal with different condition of air. In winter, you can enjoy fresh air as well warm temperature using heater function with air purification. The desire temperature ca...