This is a standard replacement filter for select Santa Fe and Ultra-Aire dehumidifiers and is able to trap particles down to 0.3 microns. Filters can last up to 1 year but you should check your filter every 6 months for optimum operating efficiency.

MERV-13 Dehumidifier Filter (16 x 20 x 2) (4037723) - B07GBFFQ3W