ALEN BREATHESMART FIT50 REPLACEMENT FILTERS Choose your unit Choose Your Filter ALL FILTERS REMOVE DUST AND ALLERGENS HEPA-PURE $79.00 Our standard filter. Great for dust & allergens CHOOSE HEPA-SILVER $89.00 All-around solution. Best for mold, germs & asthma CHOOSE HEPA-FreshPlus $119.00 Chemical filter. Good for smoke, VOCs and heavier chemicals CHOOSE HEPA-OdorCell $129.00 Odor neutralizer. Perfect for pet & diaper odor CHOOSE