The product looks good but apparently you need to get replacement filters
I am in the process of returning the item. It looked good but at the time I ordered it the description says that you can wash the filter. When I got the item, I checked with the manufacturer( not allergy asthma tech) and I was told it was not washable because the filter inside the screen shrinks.  Allergy asthmatech was kind enough to offer a full refund and said they got conflicting descriptions from the manufacturer. They told me that they would change the description .I would have loved it but it is not what I need. you can actually change the filters if you buy it from rep industries. But its not what I was looking for given the price here. It looks sturdy though if this is what you need
Rating: 3 stars