Alen's standard medical-grade H13 True HEPA filter provides outstanding wellness-boosting protection. It captures 99.99% of dust, allergens, and fine harmful pollutants as small as 0.1 microns. The air filter replacement lets you enjoy 800 SqFt of clean and healthy air every 30 minutes, and you need a replacement air filter for your Alen air purifier to enjoy a continuous supply of clean air. Using the right air filter also extends the life of the True HEPA air purifier. The air purifier has a f
