For a 20x20x1 furnace filter, identify the filter that offers the best protection against pet dander, mold spores, and smoke. State its MERV rating and the price for a 4-pack.
Navigate to DiscountFilters.com. Under 'Find Air Conditioner or Furnace Filter', select '20"' for 'Short Side'. Select '20"' for 'Long Side'. Select '1"' for 'Thickness'. Click the 'Go' button. On the results page, identify the filter that explicitly mentions protection against 'Pet Dander', 'Mold Spores', and 'Smoke' (or 'Tobacco Smoke' / 'Smog') and has the highest MERV rating among such filters. Identify the MERV rating of this selected filter. Identify the price for a '4 Pack Selected' of this filter.
Successfully navigate to the 20x20x1 furnace filter product listing page. Identify the '20x20x1 Allergy Prevention Air Filter - MERV 11' as the best fit based on the criteria. State the MERV rating of the identified filter. State the price for a 4-pack of the identified filter.