Our standard HEPA air filter for the Paralda should be replaced every six months of continuous use to achieve optimal air filtration performance.  With regular Alen air filter replacements, you extend the life of your air purifier, meet Alen's Lifetime Warranty and maintain maximum air particle removal.

This filter is not intended to be washed, vacuumed or otherwise cleaned as this may damage the fibers in the filter.  Some signs that your filter needs to be replaced include:  the air purifier omits a musty odor, increased dust on furniture or allergy symptoms increase  Please replace filter as needed.