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Catalogue
SIGURO AC-C140W Cool 9 - Portable Air Conditioner

Reviews SIGURO AC-C140W Cool 9

Interested in reviews of SIGURO AC-C140W Cool 9? It got 4.1 out of 5 stars from our customers. Find specific customer reviews of SIGURO AC-C140W Cool 9 below. We will appreciate if you also share your experiences with SIGURO AC-C140W Cool 9 after purchasing.

User Reviews

Filip, Olomoucflag
Rated 30/06/2026, variant SIGURO AC-C140W Cool 9
Verified purchase
Easy installation
It hardly cools at all
Alza refuses to accept a withdrawal from the contract within 14 days (after a week)
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Anonymous customerflag
Rated 30/06/2026, variant SIGURO AC-C140W Cool 9
Verified purchase
Having used the air conditioning for a few days in a room of around 20m², I can recommend it. Installation is easy, but you need to tighten the pipes a bit more so they don’t come loose, as someone mentioned here. The room cools down quite quickly to a comfortable temperature. Of course, it’s noisy and ‘night mode’ doesn’t do anything at all, but in terms of noise, it’s comparable to a fan running at full speed. Good buy.
solid price
easy installation
intuitive operation
looks ok
A bit noisy, but nothing to worry about
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Jan, Jilemniceflag
Rated 28/06/2026, variant SIGURO AC-C140W Cool 9
Verified purchase
It will cool an attic room of approximately 22 m² with a south-west-facing window to a temperature at which one can function normally (today it’s over 35°C outside; in the loft around the room it feels like about 50°, whilst inside the room it’s approximately 26°C). It’s definitely noisy; unless you have headphones with good noise cancellation and need to spend most of the day in the room, I’d probably think twice about whether this is the right choice for you. The hot-air vent could be better made; it has already fallen out several times when I’ve turned the air conditioning up slightly. The power cable could also be considerably longer, as could the tube for draining condensed water. The app allows you to set a timer to switch the unit on and off at a specific time and day of the week, so you can set it to start cooling a few hours before you get home from work. For the money, however, it does a decent job of delivering what you bought it for.
It can make a room comfortable even on hot summer days
The app and the remote control work just as you’d expect
I think the price is fair for the comfort it offers
Night mode does not reduce the device’s performance or noise in any way; it only dims the display
A short, rather poor-quality duct for venting warm air
Short power cable
A short hose for draining condensed water
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Anonymous customerflag
Rated 27/06/2026, variant SIGURO AC-C140W Cool 9
Verified purchase
After using it for a few days, I can say that I’m really pleasantly surprised. I bought the air-conditioning as a temporary solution whilst the flat was being renovated, but it exceeded my expectations. A room measuring approximately 18 m² with a west-facing window can be cooled with ease, even during one of the most intense heatwaves of recent years. With an outside temperature of around 35–36 °C, a perceived temperature of around 38 °C and direct afternoon sun shining through the window, it has no trouble maintaining a room temperature of approximately 22–24 °C. Just to give you an idea – I’m writing this review right in the middle of one of the most intense heatwaves of recent years. At the time of writing, a red alert for extreme temperatures has been issued in the area where I live. It’s 18:51, it’s about 35–36 °C outside, the perceived temperature is around 38 °C, and the sun is still shining directly through the window. Even so, the temperature in the room was 24.4 °C and the air conditioning still had some capacity to spare – the temperature was still falling slowly. In my view, it is precisely under such conditions that we can best see what an air-conditioning system is really capable of. Before buying it, I read some negative reviews and was worried that the air conditioning wouldn’t work as expected. Today, I’m glad I didn’t let them put me off. Yes, a single-hose portable air conditioner has its physical limitations and will not be as efficient as a split-system air conditioner, but it is certainly not true that it is merely a ‘cooling fan’. It works brilliantly for me. I think it’s important to have realistic expectations and to follow the recommended installation procedure. The results will always depend on the size of the room, the quality of the insulation, the orientation of the windows, the sealing of the vent and the overall heat load. Portable air conditioning has its advantages and its limitations. However, if someone expects the same performance and noise levels as from a split air-conditioning unit, they are comparing two different product categories. Similarly, I had no problems whatsoever with the drain hose or its fittings – once assembled correctly, everything holds firmly in place and I haven’t encountered any design flaws whilst using it. I’ve also read complaints about the noise. Yes, the portable air conditioner is audible because the compressor is right in the room. However, this is not a fault with this particular model, but rather a characteristic of the entire category of portable air conditioners. If you’re looking for a virtually silent solution, then a split air-conditioning system with an outdoor unit is the better choice. To me, the noise level is similar to that of a standard tower fan, and when I’m working with ANC headphones, I hardly notice it at all. A big plus is the Wi-Fi connection via the Tuya app. It only took a few minutes to set up, and I really appreciate the option of remote control and the ability to schedule automatic switch-on and switch-off. Overall, I’m absolutely delighted with the air conditioning. If you’re looking for a portable air conditioner for a room of a similar size and you know what to expect from this type of appliance, I can recommend it with a clear conscience.
Excellent cooling performance
It can easily cool an area of around 18 m² even during extreme heatwaves
Wi-Fi control via Tuya
Timer and scheduling
Quality workmanship
Surprisingly low noise levels
The noise level is to be expected from a portable air conditioner
It is not as efficient as a split-system air conditioner (which is to be expected in this category)
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Miloslav, Brnoflag
Rated 26/06/2026, variant SIGURO AC-C140W Cool 9
Verified purchase
Real-world data for the Siguro AC-C140W Cool 9 - Test to cool a 25m² room without direct sunlight, with the windows sealed and only the fridge running in the flat – I left for 4 hours and left the air conditioner running in ‘Cool’ mode at 16°C – Result: a drop in temperature from 29.5°C to 27.6°C. If a computer or a large electrical appliance is running at full capacity, the ‘air conditioning’ won’t lower the temperature by even 1 degree. In theory, a portable air conditioner that draws in air from outside via a second pipe – and does not create a negative pressure – would work, or an air conditioner that vents cooled air into the flat and can be placed on the balcony, such as the Sinclair AMC-11P
It could be returned within 14 days
It might just about cool a toilet measuring 3 square metres
An overpriced cold fan
Physically, it simply cannot work because it only has one pipe outlet – the warm-air outlet – and all the air that the air-conditioning unit blows out of the flat must find its way back into the flat through the gaps from outside (logically, otherwise it would create a vacuum in the flat)
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Maxmilián, Praha 5 - Stodůlkyflag
Rated 26/06/2026, variant SIGURO AC-C140W Cool 9
Verified purchase
I bought it about a year ago and I wouldn’t buy it again. It’s noisy, and in the end it doesn’t really cool a small room down much. As soon as you switch off the air conditioning, the temperature in the block of flats rises by two degrees again after a short while (a couple of minutes), and as you can’t sleep with the air conditioning on because it’s so noisy, you end up in a sauna again in the morning. The exhaust duct heats up and then catches fire. In my case, the window seals come away when they get hot (yes, after a year, but I wasn’t expecting that…). Next time, I’d probably go for something other than a portable air conditioner, or perhaps a more powerful model.
It keeps you cool, so it’s better than nothing in this heat
Option to control via the app
Option to schedule the device to switch on remotely via the app
Remote control included
It’s quite loud even at lower revs
It’s practically impossible to sleep with the air conditioning on
The exhaust hose is made of plastic, so it heats up and conducts heat
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Pavel, Praha 10flag
Rated 25/06/2026, variant SIGURO AC-C140W Cool 9
Verified purchase
If it cooled as well as it makes a racket, that would be brilliant. And vice versa. It’s our punishment for not installing a fixed air-conditioning system when we renovated the flat.
Easy to assemble and commission
It’s not for sleeping
Sleep mode is a joke; it’s just a lower fan speed. As someone mentioned here, this setting is very noisy; then there’s the second, higher setting, and that’s even worse
It’s not for sleeping
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Ondřej, Bystřice pod Hostýnem 1flag
Rated 25/06/2026, variant SIGURO AC-C140W Cool 9
Verified purchase
We’d need something a bit more powerful for our loft flat, but it’s a great buy in the sale. It can easily cool a medium-sized room (20 m²). After reading the reviews, I was worried it would be too noisy, but it’s not that bad. It’s not really suitable for sleeping, but you can work or watch TV whilst using it.
wifi
Cool
the noise isn't that bad
weight approx. 20 kg + castors
window seal included in the pack
The air vent slats cannot be tilted right up
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Anonymous customerflag
Rated 24/06/2026, variant SIGURO AC-C140W Cool 9
Verified purchase
I can't recommend this unit, even when discounted to 250€. It's not terrible per se, but it's an underpowered single-hose unit that still uses 1kWh, with a very short drain pipe and lackluster window seal. In a ~20sqm space, with a better seal, it manages to drop the temperature by only 2.5 degrees (compared to just keeping the windows shut). It's better than nothing, but if you can afford something more powerful - better do that instead.
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Jan, Horšovský Týnflag
Rated 24/06/2026, variant SIGURO AC-C140W Cool 9
Verified purchase - review from a price comparison website
OK
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