Air Filters for DeVilbiss Pulmomate Nebulizer Compressor (5 per pack)
This filter fits the Devilbiss model numbers 5650D, 4650D, and 3650D nebulizer systems. The air filter should be replaced every 6 months or when it appears dirty. It is a white felt cylinder about 3/4" in diameter and 1" tall. Each pack comes with 5 filters.