Holmes Arm & Hammer Odor Grabber and Air Cleaner (Black) Holmes Arm & Hammer Odor Grabber air purifier helps to remove unpleasant household odors. The filter is enhanced with Arm & Hammer baking soda to remove odors that come from pets, garbage, nursery, kitchen, bathrooms and litter boxes. 2 Speed Settings 2 speed settings let you customize the air purification for specific areas. For optimum performance change your size E air purifier filter every 60 to 90 days. When you need to freshen indoor air from common indoor pollutants such as cooking, pets, garbage, and sneakers this Odor Grabber air purifier is the ideal solution to get the job done in small rooms.