
Generally, no, you cannot smoke or vape in a rental car. Virtually all major rental companies, including Enterprise, Hertz, and Avis, explicitly prohibit the use of any tobacco or electronic cigarettes in their vehicles. This is strictly enforced through cleaning fees, which can be substantial if the company detects any odor or residue. The primary reason is the difficulty and cost of removing the distinct, often sweet smell of vape aerosol, which can cling to upholstery and ventilation systems, causing complaints from subsequent customers.
The smell from e-cigarettes is not just harmless water vapor. The aerosol contains particulates and flavoring agents that settle into fabrics, headliners, and air filters. While perhaps less pungent than traditional cigarette smoke, the scent is persistent and requires professional-level cleaning to eliminate completely. Rental companies have dedicated non-smoking fleets, and violating this rule is considered a breach of your rental agreement.
If you are caught, you will almost certainly be charged a smoking fee. This fee is not a simple cleaning charge; it's intended to cover the cost of deep cleaning and, more importantly, the potential loss of revenue if the car must be taken out of service for several days. These fees typically range from $250 to over $500, depending on the company and the severity of the odor.
| Rental Company | Standard Smoking/Vaping Fee | Notes |
|---|---|---|
| Enterprise | $450 + tax | Fee applies if odor is detected upon return. |
| Hertz | $250 - $450 | Fee varies based on cleaning required. |
| Avis | $250 - $500 | Detail cleaning and deodorizing process. |
| Budget | $350 - $450 | Car may be grounded for 24-72 hours for cleaning. |
| National Car Rental | $450 | Policy uniformly applied across all locations. |
Your best approach is to always assume vaping is prohibited. If you need to vape, do so outside the vehicle, well away from the doors and windows to prevent any aerosol from drifting inside. Upon returning the car, you might not notice a smell, but specialized equipment used by agents during inspection can detect it. It's a risk that simply isn't worth the high cost.

Absolutely not. I learned this the hard way after getting hit with a nearly $400 fee from Enterprise. I thought vaping in my rental would be fine since the smell doesn't stick around like cigarette smoke. I was wrong. The agent at the return lot said they have special sensors and can smell it even if you can't. It was an expensive mistake. Just step outside the car.

Think of it from the rental company's perspective. Their entire business relies on keeping cars fresh and clean for every new customer. An e-cigarette smell, while sometimes subtle to us, is a guaranteed complaint from the next person who rents that car. They have to take the vehicle out of service for a full detail, which costs them money in cleaning and lost rental days. The smoking fee isn't a penalty; it's them recouping that direct financial loss.

Check your rental agreement closely—it’s in the fine print. They don’t differentiate between cigarettes and e-cigs; it all falls under "smoking." The technology to detect vapor residue has gotten a lot better. Even if you blow the vapor out the window, the residue builds up on the windows and the inside of the windshield, creating a filmy layer that is a dead giveaway to the inspectors. It’s just not a gamble.

As a frequent traveler, I see people try to discreetly vape in rentals all the time. It's a bad habit. The smell, especially from flavored e-liquids, lingers in the air conditioning system. When the next family turns on the AC, they get a whiff of stale mango or mint, and they immediately complain. That complaint triggers an inspection and the fee. It's easier and cheaper to just pull over at a rest stop for a few minutes than to risk hundreds of dollars in unnecessary charges.


