Can I just buy an ozone machine and remove cooking smells myself?

You can buy one, but we don't use ozone and we wouldn't recommend it for your kitchen either. Ozone is toxic and isn't safe to breathe, so the room has to be fully empty of people, pets, and plants during treatment and aired out for hours before anyone goes back in. Consumer units are easy to misuse, and ozone on its own won't clean the grease and food residue that keeps the smell coming back. For most kitchens, a real degrease plus ventilation does more, and if that doesn't hold, our source-first, green, non-toxic approach is the safer call.

Are your treatments safe around my appliances, electronics, kids, and pets?

Yes. We never use ozone or chlorine gas, both of which can be harsh on rubber, soft plastics, and lungs. The methods we use, like hydroxyl generators, enzymatic and oxidizing treatments, thermal fogging, and air scrubbing, are green and non-toxic and safe to run in occupied spaces around electronics, appliances, kids, and pets. We choose the right approach for your space rather than blasting everything with the strongest option, and we're fully insured on every job.

How long until my kitchen actually smells normal again?

Most jobs are done in one to four hours, and many odors clear the same day. Severe, long-absorbed smells, especially anything with smoke in the mix, may need a layered treatment over more than one visit. Our 100% guarantee means we stay on it until the odor is genuinely gone, not just covered up.

Does Ozone Really Remove Cooking Odors? An Honest Breakdown

Cost & Methods · By Odor Removal Experts · Updated June 2026 · Cleveland and Northeast Ohio

So does ozone remove cooking odors? Honestly, it can do part of the job, but it is not what we reach for, and here is the straight version of why. Ozone can oxidize a lot of the airborne molecules that leave a kitchen smelling like last night's fried fish or burnt garlic, so the air does get better. But it isn't the magic button people hope for, and it carries real safety problems we are not willing to put on you, your family, or your pets. Cooking smells are stubborn because grease and food particles soak into porous surfaces, and treating the air does nothing about what's already settled into your cabinets, drywall, and range hood. This guide covers what ozone actually does, where it falls short, and the green, non-toxic methods we use instead to solve the problem for good.

We work on homes, apartments, restaurants, and rentals across Greater Cleveland and Northeast Ohio, so we've walked into a lot of kitchens that smell wrong the second the door opens. The job is always the same shape. Find the source, get rid of it, then treat whatever's left at the molecular level so the smell doesn't crawl back. No ozone, no chlorine, no masking, no cover-up sprays sitting on top of the problem. Just safe, non-toxic methods that are fine around kids, pets, and electronics, and we're fully insured on every job.

The short answer

Ozone can oxidize some airborne cooking smells, but it cannot lift the grease and food residue baked into cabinets, walls, and hood filters, which is what keeps the odor coming back. Ozone is also toxic to breathe, so we never use it. We degrease the source first, then use green methods like hydroxyl generators and thermal fogging to remove the smell for good.

Ozone oxidizes airborne odor but cannot reach grease soaked into surfaces
Ozone is toxic to breathe, so we never use it in a home or kitchen
Cooking smell lives in grease on cabinet tops, walls, and hood filters
Degrease the source first, then treat the air with safe methods

Does ozone remove cooking odors, or just mask them?

Ozone doesn't mask anything, and that's the honest part. It's a reactive form of oxygen (O3) that chemically breaks odor molecules apart through oxidation. When it reaches the odor, the smell is actually changed, not perfumed over. That is why it gets talked about so much.

The catch is reach, and it's a big one. Ozone only treats what the gas can physically touch, which means the air and exposed surfaces. The grease film on your cabinet faces, the residue baked onto the wall behind the range, the smoke that drove deep into drywall and soft furnishings, all of that is mostly out of reach for a gas. On most jobs that buildup is exactly what keeps the smell alive, so air-only ozone treats the symptom and leaves the cause.

Ozone also comes with a safety rule you can't bend, and it's the reason we don't use it. Ozone is toxic and isn't safe to breathe, so it can only run in an empty space with people, pets, and plants out, and the room needs hours to off-gas before anyone goes back in. We don't think that risk belongs in a home or a working kitchen, so we use green hydroxyl generators and other non-toxic methods that get the same oxidation done safely instead.

Ozone oxidizes airborne, lingering smell, but only in a fully empty space
It can't lift grease or food residue baked into surfaces
It can't run while a room is occupied, and it's toxic to breathe, which is why we don't use it

Why cooking smells are so hard to kill

Cooking odor is really two problems wearing one coat. There's the airborne smell, and there's the physical residue that keeps releasing odor for days, sometimes weeks. Frying, searing, and anything high-heat throws off tiny grease droplets that ride the air and land on walls, ceilings, the tops of upper cabinets, and any fabric in the room. Until that residue is gone, the smell keeps coming back no matter how hard you ventilate.

The spots people miss are almost always the same, and they are the ones a quick wipe of the cabinet doors and counter never reaches:

The top of the upper cabinets, where an unseen greasy film builds up
The wall directly behind and above the stove
The range hood baffles or filter

That's the grease people never see, still warming up and off-gassing by evening. So the fix has to start at the source. Degrease the real surfaces, clean or swap the range hood filter, and deal with porous materials that have soaked up odor. Source first, air second. Do it the other way around and you're just buying a few hours.

What we use instead of ozone, and where thermal fogging fits

When people compare a hydroxyl generator with ozone, the real difference is safety and use case, not whether one is fake. Hydroxyl generators make hydroxyl radicals that oxidize odor a lot like ozone does, but they're safe to run while a space is occupied. For a kitchen, an apartment, or a restaurant that can't shut its doors, that's the whole game, and it's why hydroxyl generators are one of our go-to tools. They work more gently per pass and need more run time, so they're a slower, safer burn, and that tradeoff is one we'll happily make because it keeps you, your pets, and your electronics out of harm's way.

Thermal fogging is a different tool for a different part of the job. It heats a deodorizing compound into a dense fog of micro-particles that follow the same cracks, pores, and crevices the original smoke and grease traveled into, then neutralizes the odor where it actually settled. That's why it shines on smoke and heavy grease that drove into materials. We pair it with enzymatic and oxidizing source treatments, HEPA and activated-carbon air scrubbing to pull grease particulate and odor out of the air, and sealing for any surface that can't be fully cleaned, like raw drywall above a stove, often with a shellac-based primer. Stack those green methods and you've got a real fix instead of one risky tool doing a job it was never built for.

Source removal and cleaning: degrease the real surfaces and clear the hood filter first
Hydroxyl generator: safe in occupied spaces, oxidizes odor without toxic gas, good for kitchens that stay open
Enzymatic and oxidizing treatments: break down grease and food residue at the molecular source
Thermal fogging: reaches absorbed odor in pores and crevices, strong on smoke and grease
HEPA + carbon scrubbing: pulls grease particulate and odor straight out of the air
Sealing: locks down porous surfaces that can't be fully cleaned

What it costs and what drives the price

We won't quote an exact number sight unseen, because honest pricing depends on the job in front of us. What moves the price is the size of the space, how long the odor has been building, how deep it's soaked into surfaces, which methods the job actually needs, and how much hands-on source cleaning is involved. A studio with a smell from last week is a completely different job from a restaurant line with years of grease load on the walls.

A quick treatment in a small space sits at the lower end. Larger spaces, heavy long-term buildup, or jobs that stack source removal, fogging, scrubbing, and sealing run higher. Either way you get a clear, upfront assessment before any work starts, so the number isn't a surprise after the fact.

DIY or call a pro?

Plenty of mild cooking smells are a DIY job, and we'll say so. If it's a recent smell in a small space, a real degrease of the cabinet tops, the wall behind the stove, and the hood filter, plus a few days of cross-ventilation, will often handle it. Wiping a degreaser into the spots people skip does more than any gadget you plug in.

Where we'd say call someone is when the smell keeps returning after cleaning, when it's pushed into drywall or furnishings, when there's a smoke or burnt component, or when it's a rental or restaurant where it has to be gone now. Those situations are past what a wipe-down and a fan will fix.

Skip the consumer ozone machine

Ozone is toxic to breathe, the units are easy to misuse, and ozone alone won't touch the grease that's feeding the smell. A source-first approach with green, non-toxic methods is safer and far more reliable than gambling on one machine.

Why call Odor Removal Experts

We remove cooking odors permanently at the molecular source instead of masking them, and we match the method to the problem instead of forcing one tool onto every job. We never use ozone or chlorine gas. Our treatments are green, eco-friendly, and non-toxic, so they're safe around kids, pets, and electronics. Most jobs wrap in one to four hours, with same or next-day service across Cleveland and Northeast Ohio.

Every job is backed by our 100% guarantee. If it's not gone, we're not done. Our technicians are uniformed, fully insured, and discreet, which matters whether we're in a private home or a working restaurant during a slow hour. Contact us to talk through your kitchen odor and we'll tell you straight whether it's a DIY fix or one for us.