Compatible Models: Only fit for Molekule air purifier. Value Pack: 1 Pcs x HEPA PECO-Filter 2 Pcs x With Carbon Pre-Filter Easy to Replace: Please remove the plastic bag of the product before use, the installation method is the same as before. No Worries After Sale: If you have any questions during the purchase process, you can email us and we will reply to you as soon as possible.