Getting urine, vomit, and smoke odors out of a NEMT van: cleaning, airing out, and ozone

How do you get urine smell out of a van?

Find where the liquid went, clean it out of that spot with a cleaner made for the surface, let it dry, and air the van out. The smell stays because the liquid soaked into something porous: seat foam, a carpeted step, a seam. Covering it with a fragrance only adds a second smell. A driver who cleans only what is visible will smell the same van the next morning.

Clean up the spill itself first, using the vehicle cleaning checklist and the infection control guide. They cover taking the van off the board, disinfecting, waste and laundry. The odor work starts once the puddle is gone:

1. Find the real spread. Liquid runs along seams, under cushions and down to the floor edge, so check with a flashlight and lift every cushion and cover before calling it clean.
2. Pull what comes off. Take out seat covers, mats and loose cushions and wash them as the checklist describes, so only the fixed seat and floor are left to treat.
3. Treat the material the liquid reached. Use one cleaner made for that surface, and read its label for the surfaces it covers and the time it needs on the stain. A cleaner sold for urine or pet odors, such as an enzyme product, is a reasonable choice when its label lists upholstery or carpet, and a hidden spot is the place to test it first. CDC advises a soap, detergent or other cleaner appropriate for soft surfaces, and never mixing products.
4. Let it dry and ventilate. Open the doors and run a fan. CDC advises opening doors and windows and using fans to increase air circulation when cleaning.
5. Check again next shift. If the smell comes back, the source is still in the seat foam or the floor, and the part may need replacing.

EPA ranks the ways to deal with indoor pollution, and its first choice is the same: source control comes first, outside air next, and air cleaning is a last supplement. That order is why this page starts with cleaning and gives ozone little room.

Why do odors linger in a van?

Smells live in soft, porous materials, and a van is full of them. CDC counts carpet, rugs and drapes as soft surfaces and tells cleaners to use soap or detergent made for them, launder what can be laundered, and vacuum. A fragrance or an air treatment does not reach liquid that has soaked into seat foam, so the cleaning has to reach the material itself, and the rest of this page treats air treatments as a last step.

The same reason explains what public specifications ask for. New Jersey’s vehicle sanitation rule says all interior surfaces of the vehicles licensed under N.J.A.C. 8:40 must be covered in stain resistant material that is impervious to blood, vomitus, grease, oil and common cleaning materials. A hard, sealed surface gives the liquid nowhere to go.

Does OSHA’s bloodborne pathogens rule cover urine and vomit?

Only when blood is involved. OSHA’s bloodborne pathogens standard, 29 CFR 1910.1030, requires a surface to be decontaminated with an appropriate disinfectant after a spill of blood or other potentially infectious materials, and it requires a written cleaning schedule and method of decontamination for the worksite. A spill of blood is plainly covered. The standard’s definition of other potentially infectious materials includes any body fluid visibly contaminated with blood and all body fluids where it is difficult or impossible to tell them apart. Plain urine and plain vomit are not on the list.

The practical result is that a driver cannot tell from a seat which kind of spill it was. Vomit or urine with visible blood in it is covered, and a spill where you cannot tell is safer treated as covered. The standard also lets an employer use protective coverings on equipment and surfaces and requires those coverings to be removed and replaced as soon as feasible when they become overtly contaminated. A disposable or washable cover follows the same idea. The OSHA guide for NEMT covers the exposure control plan and training that sit behind the standard.

What goes in the spill kit, and what should you never mix?

Use one cleaner at a time, follow the label, and never combine products. CDC’s facility guidance says not to mix products or chemicals with each other, because that could be hazardous and change their chemical properties. Stacking a second product on top of the first to kill the smell faster is the habit that line is written to stop.

Virginia’s Medicaid program points to what a van should carry:

• A spill kit with a deodorizer. Virginia’s Medicaid vehicle requirements, updated May 26, 2026, call for a spill kit with six items: absorbent for liquid spills, latex gloves, hazardous waste bags, a scrub brush, a disinfectant and a deodorizer. The Virginia provider handbook for the program, approved August 10, 2026, lists the same kit.
• Coverings changed after each use. The same handbook says clean linens or disposable coverings must be changed after each use, and that blankets, pillows and mattresses are kept clean and in good repair.

The cleaning checklist explains why air fresheners are the wrong fix for a smell that has a source, and why scent-free products are the better choice where possible.

Is an ozone generator worth buying for a van?

No. EPA says ozone is a toxic gas, and that relatively low amounts can cause chest pain, coughing, shortness of breath and throat irritation and can worsen asthma. It says no federal agency has approved ozone generators for occupied spaces. It also says that at concentrations within public health standards, ozone has little potential to remove indoor contaminants and is not effective at removing many odor-causing chemicals. Body odor, it notes, may be masked by the smell of ozone but is not removed.

EPA lists the limits: OSHA’s 8-hour average of 0.10 ppm, NIOSH’s recommended 0.10 ppm ceiling, and FDA’s 0.05 ppm output limit for indoor medical devices. Its studies found that some generators exceeded those levels even when users followed the instructions. In one, a large generator rated for up to 3,000 square feet, run on high in a 350 square foot room, reached 0.50 to 0.80 ppm, five to ten times the health limits. A van is much smaller than that room, and small spaces raise the concentration.

EPA also says ozone damages materials such as rubber, electrical wire coatings and fabrics, all of which a van has in quantity. For an empty space, it says high concentrations in air are sometimes used to treat odors after a fire, but conditions must be controlled so that no person or pet is exposed, and little is known about the chemical by-products left behind. EPA adds that the ability to smell ozone varies from person to person and fades quickly, so a lack of smell does not show the air is safe.

If a detailer offers an ozone treatment, treat it as an outside job on an empty van. Ask what concentration and exposure time they use, and keep riders and drivers out until they confirm the van has been ventilated.

What about smoke and vape smells?

A smoke smell is a source problem like any other: it sits in the seat fabric and soft surfaces, so the cleaning steps above apply, and replacing the worst-affected covers is faster than chasing the smell. Minnesota’s special transportation service rules make the standard explicit: when someone smokes or vapes in the vehicle, the provider has to have it thoroughly cleaned so that it is odor free before it returns to service. The no-smoking guide covers writing the rule for drivers and what brokers require.

EPA says ozone is believed to react with acrolein, one of the irritating chemicals in secondhand tobacco smoke. That is not enough to change the advice, since EPA’s overall finding is that ozone is generally ineffective at levels within health standards.

Which seats and floors keep smells from setting in?

Nonporous seats and sealed flooring give a spill less to soak into. Florida’s state minivan contract is a useful public example of what agencies buy. Its seating section says all passenger seats must be made of durable materials that can be cleaned easily, with vinyl upholstery as the standard and cloth or Nanocide fabric offered as options. Its floor covering section calls for durable nonskid transit-type flooring. The contract lists Nanocide fabric as an option, and the current order form marks it required, at $310.

The same ideas help a private fleet:

• Vinyl or other sealed seats in place of cloth, so a spill wipes up instead of soaking in.
• Washable covers or disposable coverings that come off after a spill, matching the Virginia handbook’s rule that coverings are changed after each use.
• A spill kit in every van, with the deodorizer the state and broker lists name.

Keeping a smelly van off the road in HealthRide

A van that smells is a van that should not carry the next rider. In HealthRide, dispatch can move the van’s next trips to other vehicles on the dispatch board while it is cleaned. The start-of-shift van check in the driver app is the moment for a driver to tell dispatch the van still smells, before the first pickup. See the fleet page.