Is it nesessary to wash feather pillows in the washing machine?

Yes, it is generally necessary to wash feather pillows to maintain hygiene and freshness. Washing them in a machine can effectively remove dust, allergens, and odors, but it's important to follow the care label instructions. Use a gentle cycle with mild detergent, and ensure they are thoroughly dried to prevent mold and clumping. Additionally, adding dryer balls can help maintain the pillow's fluffiness during drying.