For California Consumers

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What's the purpose of the HEPA back filter on each new unit?

With the exception of LA-1000 and LA-1500 models, the rest of our whole house machines all feature a carbon filter on the back. Please note that this filter is there for one purpose only, and that's to protect the inner mechanism of the unit. The carbon filter itself has nothing to do with purifying your home. That's the job of the air purifier and various need any filters in order to purify the environment. If you're not familiar with our technology, we strongly recommend you review how it works on this page http://www.alpineairtechnologies.com/presentation/ which will answer most if not all of your questions.