【Compatible Model】The AC400 pet care filter is only compatilbe with Purivortex AC400 Air Cleaner Purifier.Remember to check your machine model number before placing an order 【High Performance】Being superior than normal filter,our main can help to absorb most of pet dander,pollen and A11ergens in your home or office 【Activated Carbon Filter】The inner layer of activated carbon filter helps to absorb unwanted household odors such as cooking odor, smoke, pet odor and VOCs 【Nylon Pre-filters】The fine nylon pre-filter can trap larger particles such as hair,lint and pet dander 【Value Pack】Including 4 Pieces of premium yellow AC400 pet care repalcement filters at low cost to save your money and bring you fresh air all at home efficiently 【East to replace】Just need to take off the plastic bag of the filter and install the filter into the ac400 air cleaner purifier without any tool.Besides, we recommended to replace the filter every 6-12 months depending on using frequency 【Why Choose Us】Only using premium filter and cost you less than others.Besides,we will contact you immediately ,once you meet any question with our filter and contact with us in time, Filter