Download and read the manual before buying a product. I avoided buying an air filter recently because the manual made it clear that there was no auto mode, whic

Download and read the manual before buying a product. I avoided buying an air filter recently because the manual made it clear that there was no auto mode, which I would have expected at the price. Downloading the manual may have helped Jeff dodge this product. Web search has become a nightmare for consumer purchase research - it's all affiliate driven. Even the old traditional trusted names are just phoning it in with affiliate content churn.