About 6 months ago we had Check Mark come out and give us an air quality review. It was pretty straight forward...the inspector looked for obvious mold sources, water leaks etc. He also checked our A/C and heating equipment for proper operation and general condition. Most items were in good shape, but the Inspector explained the the use of inexpensive filters in our air handling was not doing us any favors. I was a bit skeptical at first but am now happy the we decided to try the the high quality filters that Check Mark recommended. They were custom measured and fitted at no charge to us and my wife claims she has noticed the difference in house dust and animal hair (we have two large dogs so that used to be a problem). Maybe I'm imagining it but I seem to be sneezing/coughing less too. With a total cost of less the $250.00 for BOTH of our A/C systems combined I'm convinced it was worth it. - Thanks for your honest "try the simple thing first" approach. Steve W. Pleasantville NY
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