To use your HSA funds for a humidifier, you must meet the following criteria:

Guardian Technologies Ultrasonic Warm and Cool Mist Tower Humidifier H3250WCA Home Depot& more Go to product viewer dialog for this item.

A compact 3-liter top-fill option effective for spaces up to 290 sq. ft. It provides up to 25 hours of continuous mist to help with coughing and runny noses. It is sold through retailers like Best Buy . Carepod One Stainless Steel Humidifier

Levoit - Dual 150 .79 gallon Top-Fill Ultrasonic Humidifier - White / Wood Go to product viewer dialog for this item.

Crane 1.2 Gallon Cool Mist Top Fill Humidifier and Aroma Diffuser Best Buy& more Go to product viewer dialog for this item.