We're sorry to learn you're not getting the full benefit of your four pack of Febreze AIR Air Fresheners from Sam's Club. Please know, our Quality Team checks every package before it gets the all clear to roll out to your local store. If they don't meet our high standards, they stay with us. It's possible your cans were tilted while spraying or shaken before spraying. These actions can cause the propellant to leak. When the propellant is gone, there's nothing to help move the liquid Febreze from the can into your space. Know we're here to help with this; give us a call any Monday through Friday, from 9 AM to 6 PM, EST. Our number is 1 (800) 308-3279.