Jay R Atascadero , CA February 03, 2017 Appliance: Model PVM1870SMSS Charcoal filter replacement I was watching a "Home Repair" program on TV and wasn't aware that my microwave was equipped with a charcoal filter. We upgraded all the appliances in our kitchen two years ago and hadn't changed the filter. I researched the filters on the computer and discovered that "Appliance Pros" had the best prices for this part. I ordered a couple, delivery was quicker than I expected, installed the parts in a matter of minutes. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes