https://amzn.to/4mjmlHv Select Accounts: LEVOIT Core 300-P Replacement Filter / Pet Allergy (Core 300-RF-PA) on sale for $35.99 - $10 (offer automatically reflected at checkout) - $10.80 (clip the 30% off Subscribe & Save coupon on the item page) = $15.19. Shipping is free with Prime or on $35+ orders.