Here's the short version for a rental host. Layla is the sensor built for the job, at a one-time $99 for its Smoke & Air Quality tier, while a View Plus runs about $300 and a couple of its sensors only switch on if you pay for a separate business plan. The one honest exception is radon: Layla doesn't measure it, so if that's your main worry, Airthings is the buy and I won't talk you out of it. For everything else a short-term rental throws at you, Layla is the one I'd put on the ceiling, and the gap is wider than the price tags make it look.

Most people walk into a Layla vs Airthings decision expecting air-quality specialist against rental gadget. That framing is wrong. Both devices read the same core air, meaning fine particulates, CO2, VOCs, humidity, and temperature. What separates them is what each one was built to notice. Airthings looks after the air in a home you live in and adds radon and barometric pressure on top. Layla watches what tends to go sideways when strangers have your keys.

What the Airthings View Plus does that Layla can't

Radon is the real one. The View Plus reads it directly with a dedicated sensor, and Layla has no answer there. If you're in a radon-prone part of the country, or the place is also your own home, that by itself is a fair reason to buy Airthings, and I'm not going to argue you out of a tool that matches a real health risk. Worth being clear on the scope, though: radon is a long-term concern in a home you live in, not usually top of the list for a short-let you're renting out. The unit also logs barometric pressure, which won't move the needle in a rental but is on the spec sheet, so it's worth naming.

That's the whole list of what a rental host gives up with Layla, and radon aside, it's short. Everything else worth comparing runs the other way.

Two more things, so nobody buys the wrong box. Neither device detects carbon monoxide, so you still need a CO alarm whichever you pick. And neither one is a certified fire alarm. Layla flags smoke, but it does not replace the detector your local code requires.

Where Layla pulls ahead for a rental

Smoking is the violation that costs hosts the most, mostly because it's the hardest to prove. Both devices notice particulates jumping when someone lights up. Airthings stops there. A cigarette, a vape, a joint, a pan of scorched onions all read the same way to it, which leaves you guessing. Layla names what happened. It tells cigarette from vape from cannabis, grades how heavy the event is, keeps updating while it unfolds, and checks itself against its own VOC reading so a scented candle doesn't set it off. When a guest disputes the cleaning fee, "medium cannabis smoke at 11:40pm" holds up in a way "elevated particulates" never will.

Noise is where this quietly stops being a contest. It looks close on paper, because the View Plus does have a noise sensor buried in the hardware. The catch is that Airthings only switches it on for its paid Business plan, the office subscription that also unlocks occupancy. Buy a View Plus for a rental and you get no noise reading at all. Layla treats noise as a core job instead: real-time decibel alerts with quiet-hours rules on the Noise plans, and an AI party detector that flags a gathering while it's still forming, with no audio recorded at any point. One of these was built to catch the 1am blowout. The other keeps a sound sensor locked behind a business login you would never buy for a two-bedroom apartment.

Occupancy is a clean break. Layla senses how full a unit is with no camera and no microphone anywhere in the loop, and it feeds that into both the party alerts and the AC control. The consumer View Plus doesn't do occupancy at all. Airthings only estimates it from CO2, and only on the same business dashboard, aimed at office facilities teams rather than a two-bedroom apartment.

That no-camera, no-microphone design deserves its own line, because it's baked into the hardware rather than left to a toggle. Guests get uneasy about being watched, and "there is physically no camera or mic in this thing" is an easy sentence to drop into your house rules. Layla measures how loud a room is, never what's said in it.

Mold is the slow one that surfaces in a review three weeks after the guest has gone. Both units track temperature and humidity, but Layla turns those readings into an early mold-risk warning before the problem is something anyone can photograph. If damp is a running worry across your properties, mold and humidity monitoring for rentals goes deeper on it. And if your issue is stuffy rooms and CO2 complaints, CO2 and ventilation in short-term rentals covers staying ahead of them.

The last difference is the one that can pay for the device, and Airthings has no answer to it at any price. Layla can run the air conditioning off occupancy, easing it back when a unit sits empty, with an Eco Mode that Layla says shaves roughly a quarter off cooling costs across a portfolio. That lives on the AC Control tier, or the All-in-One that bundles the lot. An air monitor just reports the temperature and leaves the rest to you. Over a hot season and a few doors, that one feature can pay back the difference between a monitor and a system.

At a glance: Layla vs Airthings

The price row is the part hosts underestimate. Even at the roughly $300 a View Plus costs, you still wouldn't get smoke-type identification, a mold flag, occupancy, or AC automation at any Airthings tier, and its noise sensor only wakes up if you move onto the business subscription. Layla starts at $99 for smoke and air quality with nothing recurring, and the $299 All-in-One folds in noise, party detection, occupancy and AC control in one box. The full breakdown sits on the pricing page.

Which should a host or landlord buy?

Name the job honestly and the choice mostly makes itself.

Buy the Airthings View Plus if radon is the thing keeping you up, especially in a place you actually live in. It's a capable radon and air monitor, and on that one measurement Layla can't help you.

Buy Layla if you're running rentals and your real headaches are smoke you can't pin down, parties you hear about too late, occupancy, creeping mold, and cooling bills racking up in an empty unit. Both read the same core air, but only one of them was built for that list. Layla starts at $99 for the air-quality and smoke half, and the $299 All-in-One covers the whole thing, while a View Plus runs about $300 and stops at air quality.

Still weighing the whole category rather than these two? The air quality monitor guide for rental properties is a good place to start.

FAQ

Is Layla a good Airthings alternative for rentals?

For a rental, yes. Layla's $99 Smoke & Air Quality tier names the smoke type and flags mold risk, and the same sensor adds noise with party alerts, occupancy and AC control on its higher tiers or the $299 All-in-One, none of it on a subscription. Airthings stays the better pick if radon detection is your main reason for buying.

Does the Airthings View Plus detect what kind of smoke it is?

No. It shows a particulate spike but can't separate a cigarette from a vape, cannabis, or cooking smoke. Layla identifies the type, grades intensity, and updates live, which is what makes a smoking-fee dispute stick.

Does the Airthings View Plus monitor noise?

The hardware has a noise sensor, but Airthings only enables it on its paid Business plan, so a View Plus bought for a rental shows no noise reading at all. Layla reads noise in decibels with quiet-hours rules and an AI party detector, records no audio, and needs no subscription.

Does Layla detect radon or carbon monoxide?

No to both, and it never claims otherwise. If radon matters to you, the Airthings View Plus is the buy. For carbon monoxide you need a dedicated CO alarm regardless of which monitor you choose.

Is Layla a replacement for a smoke alarm?

No. Layla flags smoke and identifies the type, but it isn't a certified fire alarm and doesn't replace the code-required detector in your property. Treat it as an enforcement tool, not life-safety hardware.

How much does the Airthings View Plus cost compared to Layla?

The View Plus runs about $300. Layla's Smoke & Air Quality tier is a one-time $99 with no subscription, and its noise, occupancy and AC features come on higher tiers up to the $299 All-in-One. Getting noise or occupancy out of Airthings means adding its business subscription on top.

Related reading

• Air quality monitor guide for rental properties
• Mold and humidity monitoring for rentals
• CO2 and ventilation in short-term rentals
• Vape detector vs smoke alarm: what's the difference?
• The best air quality monitors for rentals